List of Papers (since 1989, all papers are written in English)

• 2024

  • 485

    Non-Functionalized Subnanometer Copper Nanoparticles for Low-Temperature Methane Activation

    K. Sonobe, M. Tanabe, T. Imaoka, W-J Chun, Y. Ida, A. Kuzume, and K. Yamamoto
    ACS Appl. Nano Mater., 7, 5802-5808 (2024).
    https://doi.org/10.1021/acsanm.3c04281

    484

    Effect of Radical-Mediated Cross-Linking on Partially Fluorinated Aromatic Anion Exchange Membranes and their Applications in Alkaline Water Electrolysis Cells

    A. M. A. Mahmoud, K. Miyatake, F. Liu, V. Yadav, L. Guo, C. Y. Wong, T. Iwataki, K. Kakinuma, and M. Uchida
    Adv. Energy Sustainability Res., 5, 2300236 (2024).
    https://doi.org/10.1002/aesr.202300236

    483

    Small Angle X-Ray Scattering Study for Investigating the 3D Packing Structure of Pt Catalysts on Gd-Doped CeO₂ Supports for Fuel Cells

    K. Omote, T. Iwata, and K. Kakinuma
    Adv. Theory Simul., 7, 2300713 (2024).
    https://doi.org/10.1002/adts.202300713

    482

    Impact of Pt-Loading and Carbon Support of Pt/C Anode Catalysts on Membrane Degradation Rate in Fuel Cells

    M. R. Berber, M. Imran, H. Nishino and H. Uchida
    J. Electrochem. Soc., 171, 024502 (2024).
    https://doi.org/10.1149/1945-7111/ad2733

    481

    Interactions between Adsorbed Hydrogen and Water Molecules on a Polycrystalline Pt Electrode Studied by In-Situ ATR-FTIR Spectroscopy

    K. Kunimatsu, H. Uchida, and M. Watanabe
    J. Electroanal. Chem., 954, 118037 (2024).
    https://doi.org/10.1016/j.jelechem.2024.118037

    480

    Synthesis and Functionalities of FeSn₁₂ Superatom Prepared by Single Atom Introduction with a Dendrimer Template

    H. Muramatsu, T. Kambe, T. Tsukamoto, A. Kuzume, R. Hosono, T. Imaoka, and K. Yamamoto
    Chem. Eur. J., 30, e202400060 (2024).
    https://doi.org/10.1002/chem.202400060

  2023

  • 479

    Machine Learning Accelerated Discovery of Subnanoparticles for Electrocatalytic Hydrogen Evolution

    Q. Zou, A. Kuzume, M. Yoshida, T. Imaoka, and K. Yamamoto
    Chem. Lett., 52, 828-831 (2023).
    https://doi.org/10.1246/cl.230310

    478

    Highly Active Nanostructured NiCoMo-Based Catalyst for Oxygen Evolution in Anion-Exchange Membrane Water Electrolysis

    G. Shi, T. Tano, T. Iwataki, D. A. Tryk, M. Uchida, A. Iiyama, K. Terao, K. Tamoto, M. Yamaguchi, K. Miyatake, and K. Kakinuma
    ACS Appl. Energy Mater., 6, 10742-10747 (2023).
    https://doi.org/10.1021/acsaem.3c02152

    477

    Impacts of Pt/Carbon Black Catalyst Surface Hydrophilicity on Ionomer Distribution and Durability during Water-Generating Load Cycling of Polymer Electrolyte Fuel Cells

    K. Nagamori, S. Aoki, M. Ikegawa, K. Tamoto, Y. Honda, Y. Seki, H. Igarashi, and M. Uchida
    ACS Appl. Energy Mater., 6, 11481-11496 (2023).
    https://doi.org/10.1021/acsaem.3c01706

    476

    The Electrochemistry of Platinum-Group and Noble Metals as it Relates to Fuel Cells and Water Electrolysis: Vibrational Spectroscopic and Computational Insights

    D. A. Tryk and A. Kuzume
    Curr. Opin. Electrochem., 41, 101372 (2023).
    https://doi.org/10.1016/j.coelec.2023.101372

    475

    Development of Polymer Composite Membranes with Hydrophilic TiO₂ Nanoparticles and Perfluorosulfonic Acid-Based Electrolyte for Polymer Electrolyte Fuel Cells Operating over a Wide Temperature Range

    R. Ohno, K. Shudo, T. Tano, and K. Kakinuma
    ACS Appl. Energy Mater., 6, 10098-10104 (2023).
    https://doi.org/10.1021/acsaem.3c01721

    474

    The Effect of the Piperidinium Structure on Anion-Exchange Membranes for Applications in Alkaline Water Electrolysis Cells

    Y. Ozawa, T. Iwataki, M. Uchida, K. Kakinuma, and K. Miyatake
    J. Mater. Chem. A, 11, 19925-19935 (2023).
    https://doi.org/10.1039/d3ta03288d

    473

    Anion Exchange Membrane Reinforced with Polyethylene Substrate for Alkaline Fuel Cell Applications

    A. M. A. Mahmoud, K. Nagahara, and K. Miyatake
    Sustainable Polymer & Energy, 1, 10012 (2023).
    https://doi.org/10.35534/spe.2023.10012

    472

    Nanorod Structuring of IrO_x on a Unique Microstructure of Sb-Doped Tin Oxide to Dramatically Boost the Oxygen Evolution Reaction Activity for PEM Water Electrolysis

    G. Shi, T. Tano, D. A. Tryk, T. Uchiyama, A. Iiyama, M. Uchida, K. Terao, M. Yamaguchi, K. Tamoto, Y. Uchimoto, and K. Kakinuma
    ACS Catal., 13, 12299-12309 (2023).
    https://doi.org/10.1021/acscatal.3c01647

    471

    Proton-Conductive Aromatic Membranes Reinforced with Poly(vinylidene fluoride) Nanofibers for High-Performance Durable Fuel Cells

    F. Liu, I. S. Kim, and K. Miyatake
    Sci. Adv., 9, eadg9057 (2023).
    https://doi.org/10.1126/sciadv.adg9057

    470

    All-Solid-State Rechargeable Air Batteries Using Dihydroxybenzoquinone and Its Polymer as the Negative Electrode

    M. Yonenaga, Y. Kaiwa, K. Oka, K. Oyaizu, and K. Miyatake
    Angew. Chem. Int. Ed., 62, e202304366 (2023).
    https://doi.org/10.1002/anie.202304366

    469

    NiFe Alloy Integrated with Amorphous/Crystalline NiFe Oxide as an Electrocatalyst for Alkaline Hydrogen and Oxygen Evolution Reactions

    G. Shi, C. Arata, D. A. Tryk, T. Tano, M. Yamaguchi, A. Iiyama, M. Uchida, K. Iida, S. Watanabe, and K. Kakinuma
    ACS Omega, 8, 13068-13077 (2023).
    https://doi.org/10.1021/acsomega.3c00322

    468

    Reinforcement Effect in Tandemly Sulfonated, Partially Fluorinated Polyphenylene PEMs for Fuel Cells

    L. Guo, A. Masuda, and K. Miyatake
    RSC Adv., 13, 11225-11233 (2023).
    https://doi.org/10.1039/d3ra01041d

    467

    Changes in Microstructure of Ni-Co Dispersed Samaria-Doped Ceria Hydrogen Electrodes for the Improved Durability via Reversible Cycling Operation of Solid Oxide Cells

    E. H. Da'as, H. Nishino, and H. Uchida
    J. Electrochem. Soc., 170, 034507 (2023).
    https://doi.org/10.1149/1945-7111/acc552

    466

    Suppression of Membrane Degradation Accompanied with Increased Output Performance in Fuel Cells by Use of Silica-Containing Anode Catalyst Layers

    M. R. Berber, M. Imran, H. Nishino, and H. Uchida
    ACS Appl. Mater. Interfaces, 15, 13219-13227 (2023).
    https://doi.org/10.1021/acsami.3c01392

    465

    Highly Conductive and Ultra Alkaline Stable Anion Exchange Membranes by Superacid-Promoted Polycondensation for Fuel Cells

    A. M. A. Mahmoud and K. Miyatake
    ACS Appl. Polym. Mater., 5, 2243-2253 (2023).
    https://doi.org/10.1021/acsapm.2c02227

    464

    Atom Hybridization of Metallic Elements: Emergence of Subnano Metallurgy for the Post-Nanotechnology

    T. Imaoka, A. Kuzume, M. Tanabe, T. Tsukamoto, T. Kambe, and K. Yamamoto
    Coord. Chem. Rev., 474, 214826 (2023).
    https://doi.org/10.1016/j.ccr.2022.214826

    463

    Terpolymer-Based Anion Exchange Membranes: Effect of Pendent Hexyl Groups on Membranes Properties

    Y. Ozawa and K. Miyatake
    Bull. Chem. Soc. Jpn. 2023, 96, 16-23 (2023).
    https://doi.org/10.1246/bcsj.20220311

  2022

  • 462

    Temperature Dependence of Oxygen Evolution Reaction Activity in Alkaline Solution at Ni-Co Oxide Catalysts with Amorphous/ Crystalline Surfaces

    G. Shi, T. Tano, D. A. Tryk, M. Yamaguchi, A. Iiyama, M. Uchida, K. Iida, C. Arata, S. Watanabe, and K. Kakinuma
    ACS Catal., 12, 14209-14219 (2022).
    https://doi.org/10.1021/acscatal.2c02586

    461

    Tuning the Hydrophobic Component in Reinforced Poly(arylimidazolium)-Based Anion Exchange Membranes for Alkaline Fuel Cells

    A. M. A. Mahmoud and K. Miyatake
    ACS Appl. Energy Mater., 5, 15211-15221 (2022).
    https://doi.org/10.1021/acsaem.2c02868

    460

    Improvement of PEFC Performance Stability under High and Low Humidification Conditions by Use of a Gas Diffusion Layer with Interdigitated Gas Flow Channels

    T. Inoue, D. Sakai, K. Hirota, K. Sano, M. Nasu, H. Yanai, M. Watanabe, A. Iiyama, and M. Uchida
    J. Electrochem. Soc., 169, 114504 (2022).
    https://doi.org/10.1149/1945-7111/ac9edf

    459

    Alloying at a Subnanoscale Maximizes the Synergistic Effect on the Electrocatalytic Hydrogen Evolution

    Q. Zou, Y. Akada, A. Kuzume, M. Yoshida, T. Imaoka, and K. Yamamoto
    Angew. Chem. Int. Ed., 61, e202209675 (2022).
    https://doi.org/10.1002/anie.202209675

    458

    Addressing Planar Solid Oxide Cell Degradation Mechanisms: A Critical Review of Selected Components

    S. J. McPhail, S. Frangini, J. Laurencin, E. Effori, A. Abaza, A. K. Padinjarethil, A. Hagen, A. Leon, A. Brisse, D. Vladikova, B. Burdin, F. R. Bianchi, B. Bosio, P. Piccardo, R. Spotorno, H. Uchida, P. Polverino, E. A. Adinolfi, F. Postiglione, J-H Lee, H. Moussaoui, and J. Van herle
    Electrochem. Sci. Adv., 2, e202100024 (2022).
    https://doi.org/10.1002/elsa.202100024

    457

    Quaternary Ammonium-Biphosphate Ion-Pair Based Copolymers with Continuous H+ Transport Channels for High-Temperature Proton Exchange Membrane

    J. Jiang, Z. Li, M. Xiao, S. Wang, K. Miyatake and Y. Meng
    J. Membr. Sci., 660, 120878 (2022).
    https://doi.org/10.1016/j.memsci.2022.120878

    456

    Graphitic Carbon Nitride on Reduced Graphene Oxide Prepared via Semi-Closed Pyrolysis as Electrocatalyst for Oxygen Reduction Reaction

    J. L. Garcia, T. Miyao, J. Inukai, and B. J. V. Tongol
    Mater. Chem. Phys., 288, 126415 (2022).
    https://doi.org/10.1016/j.matchemphys.2022.126415

    455

    Tuning Hydrophobic Composition in Terpolymer-Based Anion Exchange Membranes to Balance Conductivity and Stability

    Y. Ozawa, Y. Shirase, K. Otsuji, and K. Miyatake
    Mol. Syst. Des. Eng., 7, 798-808 (2022).
    https://doi.org/10.1039/d2me00027j

    454

    Tandem Effect of Two Sulfophenylene Groups in Aromatic Polymers for Fuel Cell Membranes

    L. Guo and K. Miyatake
    ACS Appl. Energy Mater., 5, 5525-5530 (2022).
    https://doi.org/10.1021/acsaem.2c00940

    453

    Sulfonated and Fluorinated Aromatic Terpolymers as Proton Conductive Membranes: Synthesis, Structure, and Properties

    R. Kumao and K. Miyatake
    Bull. Chem. Soc. Jpn., 95, 707-712 (2022).
    https://doi.org/10.1246/bcsj.20220057

    452

    Neutron Imaging of Generated Water Inside Polymer Electrolyte Fuel Cell Using Newly-Developed Gas Diffusion Layer with Gas Flow Channels during Power Generation

    M. Nasu, H. Yanai, N. Hirayama, H. Adachi, Y. Kakizawa, Y. Shirase, H. Nishiyama, T. Kawamoto, J. Inukai, T. Shinohara, H. Hayashida, and M. Watanabe
    J. Power Sources, 530, 231251 (2022).
    https://doi.org/10.1016/j.jpowsour.2022.231251

    451

    Properties and Morphologies of Anion-Exchange Membranes with Different Lengths of Fluorinated Hydrophobic Chains

    Y. Shirase, A. Matsumoto, K. L. Lim, D. A. Tryk, K. Miyatake, and J. Inukai
    ACS Omega, 7, 13577-13587 (2022).
    https://doi.org/10.1021/acsomega.1c06958

    450

    Well-Designed Polyphenylene PEMs with High Proton Conductivity and Chemical and Mechanical Durability for Fuel Cells

    F. Liu and K. Miyatate
    J. Mater. Chem. A, 10, 7660-7667 (2022).
    https://doi.org/10.1039/d1ta10480b

    449

    Pt Nanorods Oriented on Gd-doped Ceria Polyhedra Enable Superior Oxygen Reduction Catalysis for Fuel Cells

    G. Shi, T. Tano, D. A. Tryk, A. Iiyama, M. Uchida, Y. Kuwauchi, A. Masuda, and K. Kakinuma
    J. Catal., 407, 300-311 (2022).
    https://doi.org/10.1016/j.jcat.2022.02.009

    448

    Protocol for Synthesis and Characterization of ePTFE Reinforced, Sulfonated Polyphenylene in the Application to Proton Exchange Membrane Fuel Cells

    Z. Long and K. Miyatake
    STAR Protoc., 3, 101049 (2022).
    https://doi.org/10.1016/j.xpro.2021.101049

    447

    Highly Conductive and Alkaline Stable Partially Fluorinated Anion Exchange Membranes for Alkaline Fuel Cells: Effect of Ammonium Head Groups

    A. M. A. Mahmoud and K. Miyatake
    J. Membr. Sci., 643, 120072 (2022).
    https://doi.org/10.1016/j.memsci.2021.120072

    446

    Effect of Water Management in Membrane and Cathode Catalyst Layers on Suppressing the Performance Hysteresis Phenomenon in Anion-Exchange Membrane Fuel Cells

    K. Otsuji, Y. Shirase, T. Asakawa, N. Yokota, K. Nagase, W. Xu, P. Song, S. Wang, D. A. Tryk, K. Kakinuma, J. Inukai, K. Miyatake, and M. Uchida
    J. Power Sources, 522, 230997 (2022).
    https://doi.org/10.1016/j.jpowsour.2022.230997

    445

    Particle-Size Effect of Pt Anode Catalysts on H₂O₂ Production Rate and H₂ Oxidation Activity at 20 to 80℃

    H. Uchida, G. Shi, M. Imran, and D. A. Tryk
    J. Electrochem. Soc., 169, 014516 (2022).
    https://doi.org/10.1149/1945-7111/ac4b86

    444

    Effect of Pt Loading Percentage on Carbon Blacks with Large Interior Nanopore Volume on the Performance and Durability of Polymer Electrolyte Fuel Cells

    A. Kobayashi, T. Fujii, K. Takeda, K. Tamoto, K. Kakinuma, and M. Uchida
    ACS Appl. Energy Mater., 5, 316-329 (2022).
    https://doi.org/10.1021/acsaem.1c02836

    443

    An Aromatic Ionomer in the Anode Catalyst Layer Improves the Start-up Durability of Polymer Electrolyte Fuel Cells

    T. Tanaka, M. Uchida, and K. Miyatake
    Energy Adv., 1, 38-44 (2022).
    https://doi.org/10.1039/d1ya00024a

    442

    The Distribution and Diffusion Coefficient of Water Inside a Nafion Membrane in a Running Fuel Cell under Transient Conditions Analyzed by Operando Time-Resolved CARS Spectroscopy

    H. Nishiyama, A. Iiyama, and J. Inukai
    J. Power Sources Adv., 13, 100080 (2022).
    https://doi.org/10.1016/j.powera.2021.100080

  2021

  • 441

    Poly(para-phenylene) Ionomer Membranes: Effect of Methyl and Trifluoromethyl Substituents

    F. Liu, J. Ahn, J. Miyake, and K. Miyatake
    Polym. Chem., 12, 6101-6109 (2021).
    https://doi.org/10.1039/d1py01141c

    440

    Reinforced Polyphenylene Ionomer Membranes Exhibiting High Fuel Cell Performance and Mechanical Durability

    J. Miyake, T. Watanabe, H. Shintani, Y. Sugawara, M. Uchida, and K. Miyatake
    ACS Mater. Au, 1, 81-88 (2021).
    https://doi.org/10.1021/acsmaterialsau.1c00002

    439

    ePTFE Reinforced, Sulfonated Aromatic Polymer Membranes Enable Durable, High-Temperature Operable PEMFCs

    Z. Long and K. Miyatake
    iScience, 24, 102962 (2021).
    http://doi.org/10.1016/j.isci.2021.102962

    438

    Enhanced Oxygen Reduction Electrocatalysis on PtCoSn Alloy Nanocatalyst Mediated by Ta-doped SnO₂ Support for Polymer Electrolyte Fuel Cells

    G. Shi, T. Hashimoto, D. A. Tryk, T. Tano, A. Iiyama, M. Uchida, and K. Kakinuma
    Electrochim. Acta, 390, 138894 (2021).
    https://doi.org/10.1016/j.electacta.2021.138894

    437

    Development of Highly Sensitive Raman Spectroscopy for Subnano and Single-Atom Detection

    Y. Tang, N. Haruta, A. Kuzume, and K. Yamamoto
    Molecules, 26, 5099 (2021).
    https://doi.org/10.3390/molecules26165099

    436

    Tailoring the Hydrophilic and Hydrophobic Reaction Fields of the Electrode Interface on Single Crystal Pt Electrodes for Hydrogen Evolution/Oxidation Reactions

    S. Tanaka, S. Takaya, T. Kumeda, N. Hoshi, K. Miyatake, and M. Nakamura
    Int. J. Hydrog. Energy, 46, 28078-28086 (2021).
    https://doi.org/10.1016/j.ijhydene.2021.06.064

    435

    Wet/Dry Cycle Durability of Polyphenylene Ionomer Membranes in PEFC

    T. Tanaka, H. Shintani, Y. Sugawara, A. Masuda, N. Sato, M. Uchida, and K. Miyatake
    J. Power Sources Adv., 10, 100063 (2021).
    https://doi.org/10.1016/j.powera.2021.100063

    434

    Water Distributions inside Polymer Electrolyte Thin Films Studied by Neutron Reflectometry

    T. Kawamoto and J. Inukai
    Vacuum and Surface Science, 64, 329-334 (2021).
    https://doi.org/10.1380/vss.64.329

    433

    Evaluation of Ionomer Distribution on Electrocatalysts for Polymer Electrolyte Fuel Cells by Use of a Low Acceleration Voltage Scanning Electron Microscope

    K. Kakinuma, M. Kawamoto, K. Tamoto, M. Yamaguchi, S. Honmura, A. Iiyama, and M. Uchida
    J. Electrochem. Soc., 168, 054510 (2021).
    https://doi.org/10.1149/1945-7111/abfa59

    432

    Temperature Dependence of Oxygen Reduction Activity at Pt/Nb-Doped SnO₂ Catalysts with Varied Pt Loading

    G. Shi, T. Tano, D. A. Tryk, A. Iiyama, M. Uchida, and K. Kakinuma
    ACS Catal., 11, 5222-5230 (2021).
    https://doi.org/10.1021/acscatal.0c05157

    431

    A Facile, One-Step Synthesis for Core-Shell Perovskite Materials via Molten Salt

    B. Levitas, Z. Liu, S. Piligian, K. Kakinuma, and S. Gopalan
    Cryst. Growth Des., 21, 2581-2588 (2021).
    https://doi.org/10.1021/acs.cgd.0c01249

    430

    Analytical System for Simultaneous Operando Measurements of Electrochemical Reaction Rate and Hard X-ray Photoemission Spectroscopy

    K. Suda, T. Kawamoto, S. Yasuno, T. Watanabe, T. Koganezawa, M. Matsumoto, H. Imai, I. Hirosawa, and J. Inukai
    J. Electrochem. Soc., 168, 054506 (2021).
    https://doi.org/10.1149/1945-7111/abf971

    429

    High-Performance Fuel Cell Operable at 120℃ Using Polyphenylene Ionomer Membranes with Improved Interfacial Compatibility

    Z. Long and K. Miyatake
    ACS Appl. Mater. Interfaces, 13, 15366-15372 (2021).
    https://doi.org/10.1021/acsami.1c04270

    428

    Oscillation Mechanism in Polymer Electrolyte Membrane Fuel Cell Studied by Operando Monitoring of Oxygen Partial Pressure Using Optical Probes

    Y. Kakizawa, T. Kobayashi, M. Uchida, T. Ohno, T. Suga, M. Teranishi, M. Yoneda, T. Saiki, H. Nishide, M. Watanabe, A. Iiyama, and J. Inukai
    J. Surf. Finish. Soc. Jpn., 72, 230-237 (2021).
    

    427

    Effect of Pt and Ionomer Distribution on Polymer Electrolyte Fuel Cell Performance and Durability

    A. Kobayashi, T. Fujii, C. Harada, E. Yasumoto, K. Takeda, K. Kakinuma, and M. Uchida
    ACS Appl. Energy Mater., 4, 2307-2317 (2021).
    https://dx.doi.org/10.1021/acsaem.0c02841

    426

    Supercapacitive Characteristics and Change in Oxidation State of Mn-Ni Oxide Solid Solution Electrodes

    Y. Niwa, J. Inukai, and S. Nohara
    Electrochemistry, 89, 211-214 (2021).
    https://doi.org/10.5796/electrochemistry.21-00014

    425

    Performance Hysteresis Phenomena of Anion Exchange Membrane Fuel Cells Using an Fe-N-C Cathode Catalyst and an In-House-Developed Polymer Electrolyte

    K. Otsuji, N. Yokota, D. A. Tryk, K. Kakinuma, K. Miyatake, and M. Uchida
    J. Power Sources, 487, 229407 (2021).
    https://doi.org/10.1016/j.jpowsour.2020.229407

    424

    Depth-Direction Analysis of Nickel Depletion in a Ni-Gadolinia-Doped Ceria Hydrogen Electrode after Steam Electrolysis Operation

    H. Uchida, M. E. Brito, and H. Nishino
    J. Ceram. Soc. Jpn., 129, 111-117 (2021).
    http://doi.org/10.2109/jcersj2.20189

    423

    Visualization of the Oxygen Partial Pressure in a Proton Exchange Membrane Fuel Cell During Cell Operation with Low Oxygen Concentrations

    Y. Kakizawa, C. L. Schreiber, S. Takamuku, M. Uchida, A. Iiyama, and J. Inukai
    J. Power Sources, 483, 229193 (2021).
    https://doi.org/10.1016/j.jpowsour.2020.229193

    422

    Anion Exchange Membranes Containing No β-Hydrogen Atoms on Ammonium Groups: Synthesis, Properties, and Alkaline Stability

    D. Koronka and K. Miyatake
    RSC Adv., 11, 1030-1038 (2021).
    https://doi.org/10.1039/d0ra09308d

  2020

  • 421

    Structural Investigation of Sulfonated Polyphenylene Ionomers for the Design of Better Performing Proton-Conductive Membranes

    K. Shiino, T. Otomo, T. Yamada, H. Arima, K. Hiroi, S. Takata, J. Miyake, and K. Miyatake
    ACS Appl. Polym. Mater., 2, 5558-5565 (2020).
    https://dx.doi.org/10.1021/acsapm.0c00895

    420

    Structural Effect of Polyvinylpyrrolidine-stabilized Au Nanostars for SERS Application

    Y. Tang, A. Kuzume, K. Yamamoto
    Chem. Lett., 50, 248-251 (2020).
    https://doi.org/10.1246/cl.200720

    419

    Effect of an Electrospray- Generated Ionomer Morphology on Polymer Electrolyte Fuel Cell Performance

    S. Cho, K. Tamoto, and M. Uchida
    Energy Fuels, 34, 14853-14863 (2020).
    https://dx.doi.org/10.1021/acs.energyfuels.0c02337

    418

    Ladder-Type Sulfonated Poly (arylene perfluoroalkylene)s for High Performance Proton Exchange Membrane Fuel Cells

    Z. Long, J. Miyake, and K. Miyatake
    RSC Adv., 10, 41058-41064 (2020).
    https://doi.org/10.1039/d0ra08630d

    417

    Remarkably Improved Durability of Ni-Co Dispersed Samaria-Doped Ceria Hydrogen Electrodes by Reversible Cycling Operation of Solid Oxide Cells

    H. Uchida, H. Nishino, P. Puengjinda, and K. Kakinuma
    J. Electrochem. Soc., 167, 134516 (2020).
    https://doi.org/10.1149/1945-7111/abbdd8

    416

    Rechargeable Proton Exchange Membrane Fuel Cell Containing an Intrinsic Hydrogen Storage Polymer

    J. Miyake, Y. Ogawa, T. Tanaka, J. Ahn, K. Oka, K. Oyaizu, and K. Miyatake
    Commun. Chem., 3, 138 (2020).
    https://doi.org/10.1038/s42004-020-00384-z

    415

    Development of in situ A-SAXS and XAS Measurements of Pt Catalyst under Controlled Electrochemical Condition Using Channel Flow Electrode Cell

    T. Watanabe, T. Kawamoto, K. Suda, C. Pondchanok, Y. Hiraoka, and J. Inukai
    ECS Trans., 98, 477-486 (2020).
    https://doi.org/10.1149/09809.0477ecst

    414

    Dynamic Distribution of Chemical States of Water inside a Nafion Membrane in a Running Fuel Cell Monitored by Operando Time-Resolved CARS Spectroscopy

    H. Nishiyama, S. Takamuku, A. Iiyama, and J. Inukai
    J. Phys. Chem. C, 124, 19508-19513 (2020).
    https://dx.doi.org/10.1021/acs.jpcc.0c06499

    413

    Probing Consequences of Anion-Dictated Electrochemistry on the Electrode/Monolayer/Electrolyte Interfacial Properties

    R. A. Wong, Y. Yokota, M. Wakisaka, J. Inukai, and Y. Kim
    Nature Commun., 11, 4194 (2020).
    https://doi.org/10.1038/s41467-020-18030-6

    412

    Enhancement of the Catalytic Activity and Load Cycle Durability of a PtCo Alloy Cathode Catalyst Supported on Ta-Doped SnO₂ with a Unique Fused Aggregated Network Microstructure for Polymer Electrolyte Fuel Cells

    K. Kakinuma, M. Hayashi, T. Hashimoto, A. Iiyama, and M. Uchida
    ACS Appl. Energy Mater., 3, 6922-6928 (2020).
    https://dx.doi.org/10.1021/acsaem.0c00993

    411

    Current-Sensing Atomic Force Microscopy for Analyzing Conformations and Properties of Polymer Membranes for Fuel Cells

    J. Inukai
    Curr. Opin. Electrochem., 21, 345-350 (2020).
    https://doi.org/10.1016/j.coelec.2020.04.013

    410

    PEFC Catalyst Layers: Effect of Support Microstructure on Both Distributions of Pt and Ionomer and Cell Performance and Durability

    M. Uchida
    Curr. Opin. Electrochem., 21, 209-218 (2020).
    https://doi.org/10.1016/j.coelec.2020.02.019

    409

    Proton Exchange Membranes Containing Densely Sulfonated Quinquephenylene Groups for High Performance and Durable Fuel Cells

    Z. Long, J. Miyake, and K. Miyatake
    J. Mater. Chem. A, 8, 12134-12140 (2020).
    https://doi.org/10.1039/d0ta03435e

    408

    Sublayered Thin Films of Hydrated Anion Exchange Ionomer for Fuel Cells Formed on SiO₂ and Pt Substrates Analyzed by Neutron Reflectometry under Controlled Temperature and Humidity Conditions

    T. Kimura, T. Kawamoto, M. Aoki, T. Mizusawa, N. L. Yamada, K. Miyatake, and J. Inukai
    Langmuir, 36, 4955-4963 (2020).
    https://dx.doi.org/10.1021/acs.langmuir.0c00440

    407

    Chemical States of Water Molecules Distributed Inside a Proton Exchange Membrane of a Running Fuel Cell Studied by Operando Coherent Anti-Stokes Raman Scattering Spectroscopy

    H. Nishiyama, S. Takamuku, K. Oshikawa, S. Lacher, A. Iiyama, and J. Inukai
    J. Phys. Chem. C, 124 , 9703-9711 (2020).
    https://dx.doi.org/10.1021/acs.jpcc.0c00347

    406

    Sulfonated Poly(arylene perfluoroalkylene) Terpolymers as Novel Proton Exchange Membranes for High Performance Fuel Cells

    Z. Long, J. Miyake, and K. Miyatake
    Bull. Chem. Soc. Jpn., 93, 338-344 (2020).
    https://doi.org/10.1246/bcsj.20190351

    405

    Differences in the Synthetic Method Affected Copolymer Sequence and Membrane Properties of Sulfonated Polymers

    I. Hosaka, T. Sawano, T. Kimura, A. Matsumoto, J. Miyake, and K. Miyatake
    Bull. Chem. Soc. Jpn., 93, 393-398 (2020).
    https://doi.org/10.1246/bcsj.20190309

    404

    Adstructures of Platinum-Complex Precursors and Platinum Nanoparticles Formed on Low-Index Single-Crystal Au Surfaces for Oxygen Reduction Reaction

    M. Hara, K. Suto, J. Inukai, S. Yoshimoto, and K. Itaya
    J. Electroanal. Chem., 858, 114019 (2020).
    http://dx.doi.org/10.1016/j.jelechem.2020.114019

    403

    Unparalleled Mitigation of Membrane Degradation in Fuel Cells via a Counter-Intuitive Approach: Suppression of H₂O₂ Production at the Hydrogen Anode Using a Pt_skin–PtCo Catalyst

    G. Shi, D. A. Tryk, T. Iwataki, H. Yano, M. Uchida, A. Iiyama, and H. Uchida
    J. Mater. Chem. A, 8, 1091-1094 (2020).
    https://doi.org/10.1039/c9ta12023h

    402

    Enhancement of Hydrogen Evolution Activity on Pt-Skin/Pt₃Co [(111), (100), and (110)] Single Crystal Electrodes

    S. Kobayashi, D. A. Tryk, and H. Uchida
    Electrochem. Commun., 110, 106615 (2020).
    https://doi.org/10.1016/j.elecom.2019.106615

    401

    Highly Anion Conductive Polymers: How Do Hexafluoroisopropylidene Groups Affect Membrane Properties and Alkaline Fuel Cell Performance?

    T. Kimura, A. Matsumoto, J. Inukai, and K. Miyatake
    ACS Appl. Energy Mater., 3, 469-477 (2020).
    https://doi.org/10.1021/acsaem.9b01733

  2019

  • 400

    Potential Cycle-Induced Change in the Crystal Structure of a Pt-Skin/PtCo Alloy Nanostructured Electrocatalyst for Fuel Cells

    H. Yano, N. Takao, M. Arao, M. Matsumoto, T. Itoh, H. Imai, A. Iiyama, J. Inukai, and H. Uchida
    ACS Appl. Nano Mater., 2, 7473-7477 (2019).
    https://doi.org/10.1021/acsanm.9b02251

    399

    Partially Fluorinated Copolymers Containing Pendant Piperidinium Head Groups as Anion Exchange Membranes for Alkaline Fuel Cells

    D. Koronka, A. Matsumoto, K. Otsuji, and K. Miyatake
    RSC Adv., 9, 37391-37402 (2019).
    https://doi.org/10.1039/c9ra07775h

    398

    Effect of Core-Alloy Composition and Particle Size of Stabilized Pt Skin/PtCo Alloy Nanocatalysts on the CO-Tolerant Hydrogen Oxidation Electrocatalysis

    G. Shi, H. Yano, D. A. Tryk, A. Iiyama, and H. Uchida
    Electrochim. Acta., 328, 135056 (2019).
    https://doi.org/10.1016/j.electacta.2019.135056

    397

    Partially Fluorinated Polyphenylene Ionomers as Proton Exchange Membranes for Fuel Cells: Effect of Pendant Multi-Sulfophenylene Groups

    Z. Long, J. Miyake, and K. Miyatake
    ACS Appl. Energy Mater., 2 7527-7534 (2019).
    https://doi.org/10.1021/acsaem.9b01513

    396

    Electronic States and Transport Phenomena of Pt Nanoparticle Catalysts Supported on Nb-Doped SnO₂ for Polymer Electrolyte Fuel Cells

    K. Kakinuma, K. Suda, R. Kobayashi, T. Tano, C. Arata, I. Amemiya, S. Watanabe, M. Matsumoto, H. Imai, A. Iiyama, and M. Uchida
    ACS Appl. Mater. Interfaces, 11, 34957-34963 (2019).
    https://doi.org/10.1021/acsami.9b11119

    395

    Sublayered Structures of Hydrated Nafion® Thin Film Formed by Casting on Pt Substrate Analyzed by X-ray Absorption Spectroscopy under Ambient Conditions and Neutron Reflectometry at Temperature of 80°C and Relative Humidity of 30–80%

    T. Kawamoto, M. Aoki, T. Kimura, P. Chinapang, T. Mizusawa, N. L. Yamada, F. Nemoto, T. Watanabe, H. Tanida, M. Matsumoto, H. Imai, J. Miyake, K. Miyatake, and J. Inukai
    Electrochemistry, 87, 270-275 (2019).
    https://doi.org/10.5796/electrochemistry.19-00042

    394

    Further Improvement in Performances of La_0.6Sr_0.4Co_0.2Fe_0.8O_3－δ - Doped Ceria Composite Oxygen Electrodes with Infiltrated Doped Ceria Nanoparticles for Reversible Solid Oxide Cells

    M. E. Brito, H. Morishita, J. Yamada, H. Nishino, and H. Uchida
    J. Power Sources, 427, 293-298 (2019).
    https://doi.org/10.1016/j.jpowsour.2019.04.066

    393

    In-Plane Distribution of Water Inside Nafion® Thin Film Analyzed by Neutron Reflectivity at Temperature of 80 °C and Relative Humidity of 30%–80% Based on 4-Layered Structural Model

    T. Kawamoto, M. Aoki, T. Kimura, T. Mizusawa, N. L. Yamada, J. Miyake, K. Miyatake, and J. Inukai
    Jpn. J. Appl. Phys., 58, SIID01-1 - SIID01-5 (2019).
    https://doi.org/10.7567/1347-4065/ab0c7c

    392

    Highly Stable Polyphenylene Ionomer Membranes from Dichlorobiphenyls

    K. Shiino, J. Miyake, and K. Miyatake
    Chem. Commun., 55 7073-7076 (2019).
    https://doi.org/10.1039/c9cc02475a

    391

    Effect of Alkanediol Additives on the Properties of Polyphenylene-Based Proton Exchange Membranes

    Z. Long, Y. Zhang, J. Miyake, and K. Miyatake
    Ind. Eng. Chem. Res., 58, 9915-9920 (2019).
    https://doi.org/10.1021/acs.iecr.9b01564

    390

    Development and Analysis of an Innovative Flat-Metal Separator Integrating the GDL with Gas-Flow Channels as PEFC Components

    M. Watanabe, H. Yanai, and M. Nasu
    J. Electrochem. Soc., 166, F3210-F3215 (2019).
    https://doi.org/10.1149/2.0231907jes

    389

    Electro-Oxidation of CO Saturated in 0.1 M HClO₄ on Basal and Stepped Pt Single-Crystal Electrodes at Room Temperature Accompanied by Surface Reconstruction

    K. Abe, H. Uchida, and J. Inukai
    Surfaces, 2, 315-325 (2019).
    https://doi.org/10.3390/surfaces2020023

    388

    Effect of Crosslinking on the Properties of Partially Fluorinated Anion Exchange Membranes

    D. Koronka, A. M. A. Mohamed, and K. Miyatake
    J. Polym. Sci. A: Polym. Chem., 57, 1059-1069 (2019).
    https://doi.org/10.1002/pola.29360

    387

    Durability of Newly Developed Polyphenylene-Based Ionomer Membranes in Polymer Electrolyte Fuel Cells: Accelerated Stress Evaluation

    R. Shimizu, K. Otsuji, A. Masuda, N. Sato, M. Kusakabe, A. Iiyama, K. Miyatake, and M. Uchida
    J. Electrochem. Soc., 166, F3105-F3110 (2019).
    https://doi.org/10.1149/2.0131907jes

    386

    High Hydrogen Evolution Activity and Suppressed H₂O₂ Production on Pt-Skin/PtFe Alloy Nanocatalysts for Proton Exchange Membrane Water Electrolysis

    G. Shi, H. Yano, D. A. Tryk, S. Nohara, and H. Uchida
    Phys. Chem. Chem. Phys., 21, 2861-2865 (2019).
    https://doi.org/10.1039/c8cp06825a

    385

    Effect of Electronic Conductivities of Iridium Oxide/Doped SnO₂ Oxygen-Evolving Catalysts on the Polarization Properties in Proton Exchange Membrane Water Electrolysis

    H. Ohno, S. Nohara, K. Kakinuma, M. Uchida, and H. Uchida
    Catalysts, 9, 74 (2019).
    https://doi.org/10.3390/catal9010074

  2018

  • 384

    Platinum Anti-Dissolution Mechanism of Pt/Nb-SnO₂ Cathode Catalyst Layer during Load Cycling in the Presence of Oxygen for Polymer Electrolyte Fuel Cells

    C. Takei, R. Kobayashi, Y. Mizushita, Y. Hiramitsu, K. Kakinuma, and M. Uchida
    J. Electrochem. Soc., 165, F1300-F1311 (2018).
    https://doi.org/10.1149/2.0591816jes

    383

    Sulfonated Aromatic Polymers Containing Hexafluoroisopropylidene Groups: Simple but Effective Structure for Fuel Cell Membranes

    J. Ahn, R. Shimizu, and K. Miyatake
    J. Mater. Chem. A, 6, 24625-24632 (2018).
    https://doi.org/10.1039/c8ta09587f

    382

    Structurally Well-Defined Anion Exchange Membranes Containing Perfluoroalkyl and Ammonium-Functionalized Fluorenyl Groups

    M. Ozawa, T. Kimura, K. Otsuji, R. Akiyama, J. Miyake, M. Uchida, J. Inukai, and K. Miyatake
    ACS Omega, 3, 16143-16149 (2018).
    https://doi.org/10.1021/acsomega.8b02742

    381

    Discerning the Redox-Dependent Electronic and Interfacial Structures in Electroactive Self-Assembled Monolayers

    R. A. Wong, Y. Yokota, M. Wakisaka, J. Inukai, and Y. Kim
    J. Am. Chem. Soc., 140, 13672-13679 (2018).
    https://doi.org/10.1021/jacs.8b05885

    380

    Effects of Sulfate on the Oxygen Reduction Reaction Activity on Stabilized Pt Skin/PtCo Alloy Catalysts from 30 to 80 ℃

    H. Nishikawa, H. Yano, J. Inukai, D. A. Tryk, A. Iiyama, and H. Uchida
    Langmuir, 34, 13558-13564 (2018).
    https://doi.org/10.1021/acs.langmuir.8b02945

    379

    Oxygen Evolution Reaction on Perovskites: A Multieffect Descriptor Study Combining Experimental and Theoretical Methods

    X. Cheng, E. Fabbri, Y. Yamashita, I. E. Castelli, B. Kim, M. Uchida, R. Haumont, I. Puente-Orench, and T. J. Schmidt
    ACS Catal., 8, 9567-9578 (2018).
    https://doi.org/10.1021/acscatal.8b02022

    378

    Influence of Ionomer Content on Both Cell Performance and Load Cycle Durability for Polymer Electrolyte Fuel Cells Using Pt/Nb-SnO₂ Cathode Catalyst Layers

    K. Kakinuma, R. Kobayashi, A. Iiyama, and M. Uchida
    J. Electrochem. Soc., 165, J3083-J3089 (2018).
    https://doi.org/10.1149/2.0141815jes

    377

    Sulfonated Terpolymers Containing Alkylene and Perfluoroalkylene Groups: Effect of Aliphatic Groups on Membrane Properties and Interface with the Catalyst Layers

    J. Ahn and K. Miyatake
    ACS. Appl. Energy Mater., 1, 3965-3972 (2018).
    https://doi.org/10.1021/acsaem.8b00684

    376

    PtNi Alloy Nanoparticles Prepared by Nanocapsule Method for ORR Catalysts in Alkaline Media

    K. Miyatake and Y. Shimizu
    Bull. Chem. Soc. Jpn., 91, 1495-1497 (2018).
    https://doi.org/10.1246/bcsj.20180175

    375

    Optimization of Pendant Chain Length in Partially Fluorinated Aromatic Anion Exchange Membranes for Alkaline Fuel Cells

    A. M. A. Mahmoud and K. Miyatake
    J. Mater. Chem. A, 6, 14400-14409 (2018).
    https://doi.org/10.1039/c8ta04310h

    374

    Structurally Well-Defined Anion Conductive Aromatic Copolymers: Effect of the Side-Chain Length

    R. Akiyama, N. Yokota, K. Otsuji, and K. Miyatake
    Macromolecules, 51, 3394-3404 (2018).
    https://doi.org/10.1021/acs.macromol.8b00284

    373

    Achievement of Distinctively High Durability at Nanosized Pt Catalysts Supported on Carbon Black for Fuel Cell Cathodes

    M. Watanabe, H. Yano, H. Uchida, and D. A. Tryk
    J. Electroanal. Chem., 819, 359-364 (2018).
    https://doi.org/10.1016/j.jelechem.2017.11.017

    372

    Synthesis and Evaluation of Double-Layer Electrodes Using a Ni-BaCe_0.50Zr_0.27Y_0.20Ni_0.03O_3−δ Cermet with a Fused-Aggregate Network Structure as the Hydrogen Electrode of Solid Oxide Cells

    R. Nishikawa, H. Nishino, M. E. Brito, and K. Kakinuma
    J. Ceram. Soc. Jpn., 126, 208-213 (2018).
    https://doi.org/10.2109/jcersj2.17258

    371

    Versatile Synthesis of Sulfonated Aromatic Copolymers Using NiBr₂

    I. Hosaka, M. Kusakabe, and K. Miyatake
    Chem. Lett., 47, 257-259 (2018).
    https://doi.org/10.1246/cl.171071

    370

    Remarkable Reinforcement Effect in Sulfonated Aromatic Polymers as Fuel Cell Membrane

    J. Miyake, M. Kusakabe, A. Tsutsumida, and K. Miyatake
    ACS Appl. Energy Mater., 1, 1233-1238 (2018).
    https://doi.org/10.1021/acsaem.7b00349

    369

    Sulfonated Phenylene/Quinquephenylene/Perfluoroalkylene Terpolymers as Proton Exchange Membranes for Fuel Cells

    Y. Zhang, J. Miyake, R. Akiyama, R. Shimizu, and K. Miyatake
    ACS Appl. Energy Mater., 1, 1008-1015 (2018).
    https://doi.org/10.1021/acsaem.7b00162

    368

    Effects of Both Oxygen Permeability and Ion Exchange Capacity for Cathode Ionomers on the Performance and Durability of Polymer Electrolyte Fuel Cells

    R. Shimizu, Y.-C. Park, K. Kakinuma, A. Iiyama, and M. Uchida
    J. Electrochem. Soc, 165, F3063-F3071 (2018).
    https://doi.org/10.1149/2.0071806jes

    367

    Phase Separation and Ion Conductivity in the Bulk and at the Surface of Anion Exchange Membranes with Different Ion Exchange Capacities at Different Humidities

    T. Kimura, R. Akiyama, K. Miyatake, and J. Inukai
    J. Power Sources, 375, 397-403 (2018).
    http://dx.doi.org/10.1016/j.jpowsour.2017.06.081

    366

    Mechanism of H₂O₂ Decomposition by Triphenylphosphine Oxide

    T. Tsuneda, J. Miyake, and K. Miyatake
    ACS Omega, 3, 259-265 (2018).
    https://doi.org/10.1021/acsomega.7b01416

    365

    Atomically Flat Pt Skin and Striking Enrichment of Co in Underlying Alloy at Pt₃Co(111) Single Crystal with Unprecedented Activity for the Oxygen Reduction Reaction

    S. Kobayashi, M. Aoki, M. Wakisaka, T. Kawamoto, R. Shirasaka, K. Suda, D. A. Tryk, J. Inukai, T. Kondo, and H. Uchida
    ACS Omega, 3, 154-158 (2018).
    https://doi.org/10.1021/acsomega.7b01793

    364

    Unsupported Pt₃Ni Aerogels as Corrosion Resistant PEFC Anode Catalysts under Gross Fuel Starvation Conditions

    S. Henning, R. Shimizu, J. Herranz, L. Kühn, A. Eychmüller, M. Uchida, K. Kakinuma, and T. J. Schmidt
    J. Electrochem. Soc, 165, F32-F37 (2018).
    https://doi.org/10.1149/2.0531802jes

    363

    Tomographic Analysis and Modeling of Polymer Electrolyte Fuel Cell Unsupported Catalyst Layers

    H. Ishikawa, S. Henning, J. Herranz, A. Eychmüller, M. Uchida, and T. J. Schmidt
    J. Electrochem. Soc, 165, F7-F16 (2018).
    https://doi.org/10.1149/2.0371802jes

  2017

  • 362

    Robust Anion Conductive Polymers Containing Perfluoroalkylene and Pendant Ammonium Groups for High Performance Fuel Cells

    H. Ono, T. Kimura, A. Takano, K. Asazawa, J. Miyake, J. Inukai, and K. Miyatake
    J. Mater. Chem. A, 5, 24804-24812 (2017).
    https://doi.org/10.1039/c7ta09409d

    361

    Weakened CO Adsorption and Enhanced Structural Integrity of a Stabilized Pt Skin/PtCo Hydrogen Oxidation Catalyst Analysed by In Situ X-Ray Absorption Spectroscopy

    G. Shi, H. Yano, D. A. Tryk, M. Matsumoto, H. Tanida, M. Arao, H. Imai, J. Inukai, A. Iiyama, and H. Uchida
    Catal. Sci. Technol., 7, 6124-6131 (2017).
    https://doi.org/10.1039/c7cy01700f

    360

    Boosting Pt Oxygen Reduction Reaction Activity by Tuning the Tin Oxide Support

    E. Fabbri, A. Rabis, Y. Chino, M. Uchida, and T. J. Schmidt
    Electrochem. Commun., 83, 90-95 (2017).
    http://dx.doi.org/10.1016/j.elecom.2017.09.006

    359

    Design of Flexible Polyphenylene Proton-Conducting Membrane for Next-Generation Fuel Cells

    J. Miyake, R. Taki, T. Mochizuki, R. Shimizu, R. Akiyama, M. Uchida, and K. Miyatake
    Sci. Adv., 3, eaao0476 (2017).
    https://doi.org/10.1126/sciadv.aao0476

    358

    Durability and Degradation Analysis of Hydrocarbon Ionomer Membranes in Polymer Electrolyte Fuel Cells Accelerated Stress Evaluation

    R. Shimizu, J. Tsuji, N. Sato, J. Takano, S. Itami, M. Kusakabe, K. Miyatake, A. Iiyama, and M. Uchida
    J. Power Sources, 367, 63-71 (2017).
    http://dx.doi.org/10.1016/j.jpowsour.2017.09.025

    357

    Copolymers Composed of Perfluoroalkyl and Ammonium-Functionalized Fluorenyl Groups as Chemically Stable Anion Exchange Membranes

    M. Ozawa, T. Kimura, R. Akiyama, J. Miyake, J. Inukai, and K. Miyatake
    Bull. Chem. Soc. Jpn., 90, 1088-1094 (2017).
    https://doi.org/10.1246/bcsj.20170185

    356

    Research and Development of Highly Active and Durable Electrocatalysts Based on Multilateral Analyses of Fuel Cell Reactions

    H. Uchida
    Electrochemistry, 85, 526-533 (2017).
    http://dx.doi.org/10.5796/electrochemistry.85.526

    355

    Electrochemical Oxidation of Hydrolyzed Poly-Oxymethylene-Dimethylether by Pt and PtRu Catalysts on Ta-Doped SnO₂ Supports for Direct Oxidation Fuel Cells

    K. Kakinuma, N. Hirayama, A. Iiyama, M. Watanabe, and M. Uchida
    J. Electrochem. Soc., 164, F1226-F1233 (2017).
    https://doi.org/10.1149/2.1461712jes

    354

    Durability of Sulfonated Phenylene Poly (Arylene Ether Ketone) Semiblock Copolymer Membrane in Wet-Dry Cycling for PEFCs

    H. Ishikawa, Y. Fujita, J. Tsuji, M. Kusakabe, J. Miyake, Y. Sugawara, K. Miyatake, and M. Uchida
    J. Electrochem. Soc., 164, F1204-F1210 (2017).
    https://doi.org/10.1149/2.1471712jes

    353

    Durability of Unsupported Pt-Ni Aerogels in PEFC Cathodes

    S. Henning, J. Herranz, H. Ishikawa, B. J. Kim, D. Abbott, L. Kühn, A. Eychmüller, and T. J. Schmidt
    J. Electrochem. Soc., 164, F1136-F1141 (2017).
    https://doi.org/10.1149/2.0131712jes

    352

    Analysis of the Surface Oxidation Process on Pt Nanoparticles on a Glassy Carbon Electrode by Angle-Resolved, Grazing-Incidence X‑ray Photoelectron Spectroscopy

    S. Miyashita, M. Wakisaka, A. Iiyama, and H. Uchida
    Langmuir, 33, 8877-8882 (2017).
    https://doi.org/10.1021/acs.langmuir.7b01446

    351

    Unsupported Pt-Ni Aerogels with Enhanced High Current Performance and Durability in Fuel Cell Cathodes

    S. Henning, H. Ishikawa, L. Kühn, J. Herranz, E. Müller, A. Eychmüller, and T. J. Schmidt
    Angew. Chem. Int. Ed, 56, 10707-10710 (2017).
    https://doi.org/10.1002/anie.201704253

    350

    Theoretical Investigation of the H₂O₂-Induced Degradation Mechanism of Hydrated Nafion Membrane via Ether-Linkage Dissociation

    T. Tsuneda, R. K. Singh, A. Iiyama, and K. Miyatake
    ACS Omega, 2, 4053-4064 (2017).
    https://doi.org/10.1021/acsomega.7b00594

    349

    Synthesis and Evaluation of Ni Catalysts Supported on BaCe_0.5Zr_0.3-xY_0.2Ni_xO_3-δ with Fused-Aggregate Network Structure for the Hydrogen Electrode of Solid Oxide Electrolysis Cell

    R. Nishikawa, K. Kakinuma, H. Nishino, M. E. Brito, S. Gopalan, and H. Uchida
    Catalysts, 7, 223 (2017).
    https://doi.org/10.3390/catal7070223

    348

    Oxygen Reduction Activity and Durability of Ordered and Disordered Pt₃Co Alloy Nanoparticle Catalysts at Practical Temperatures of Polymer Electrolyte Fuel Cells

    H. Yano, I. Arima, M. Watanabe, A. Iiyama, and H. Uchida
    J. Electrochem. Soc., 164, F966-F972 (2017).
    https://doi.org/10.1149/2.1141709jes

    347

    Remarkable Mass Activities for the Oxygen Evolution Reaction at Iridium Oxide Nanocatalysts Dispersed on Tin Oxides for Polymer Electrolyte Membrane Water Electrolysis

    H. Ohno, S. Nohara, K. Kakinuma, M. Uchida, A. Miyake, S. Deki, and H. Uchida
    J. Electrochem. Soc., 164, F944-F947 (2017).
    https://doi.org/10.1149/2.1101709jes

    346

    Visualization of the Oxygen Partial Pressure on the Gas-Diffusion-Layer Surface under the Single-Serpentine Flow Channel and the Ribs in a Polymer Electrolyte Membrane Fuel Cell during the Power Generation

    K. Takanohashi, M. Uchida, A. Iiyama, and J. Inukai
    J. Finish. Soc. Japan, 68, 338-343 (2017).

    345

    High Hydroxide Ion Conductivity with Enhanced Alkaline Stability of Partially Fluorinated and Quaternized Aromatic Copolymers as Anion Exchange Membranes

    A. M. A. Mahmoud, A. M. M. Elsaghier, K. Otsuji, and K. Miyatake
    Macromolecules, 50, 4256-4266 (2017).
    https://doi.org/10.1021/acs.macromol.7b00401

    344

    Effect of Microstructure on Performance of Double-Layer Hydrogen Electrodes for Reversible SOEC/SOFC

    P. Puengjinda, H. Nishino, K. Kakinuma, M. E. Brito, and H. Uchida
    J. Electrochem. Soc., 164, F889-F894 (2017).
    https://doi.org/10.1149/2.0241709jes

    343

    Effect of Alloy Composition and Crystal Face of Pt-Skin/Pt_100－xCo_x [(111), (100), and (110)] Single Crystal Electrodes on the Oxygen Reduction Reaction Activity

    S. Kobayashi, M. Wakisaka, D. A. Tryk, A. Iiyama, and H. Uchida
    J. Phys. Chem. C., 121, 11234-11240 (2017).
    https://doi.org/10.1021/acs.jpcc.6b12567

    342

    Pt/Co Alloy Nanoparticles Prepared by Nanocapsule Method Exhibit a High Oxygen Reduction Reaction Activity in the Alkaline Media

    K. Miyatake and Y. Shimizu
    ACS Omega, 2, 2085-2089 (2017).
    https://doi.org/10.1021/acsomega.7b00415

    341

    High Durability of La_0.6Sr_0.4Co_0.2Fe_0.8O_3−δ/Samaria-doped Ceria (SDC) Composite Oxygen Electrode with SDC Interlayer for Reversible Solid Oxide Fuel Cell/Solid Oxide Electrolysis Cell

    K. Shimura, H. Nishino, K. Kakinuma, M. E. Brito, and H. Uchida
    J. Ceram. Soc. Jpn., 125, 218-222 (2017).
    http://doi.org/10.2109/jcersj2.16274

    340

    Improvement of Cell Performance in Low-Pt-Loading PEFC Cathode Catalyst Layers with Pt/Ta-SnO₂ Prepared by the Electrospray Method

    K. Takahashi, R. Koda, K. Kakinuma, and M. Uchida
    J. Electrochem. Soc., 164, F235-F242 (2017).
    https://doi.org/10.1149/2.0251704jes

    339

    Degradation Mechanisms of Carbon Supports under Hydrogen Passivation Startup and Shutdown Process for PEFCs

    Y. Yamashita, S. Itami, J. Takano, K. Kakinuma, H. Uchida, M. Watanabe, A. Iiyama, and M. Uchida
    J. Electrochem. Soc., 164, F181-F187 (2017).
    https://doi.org/10.1149/2.0101704jes

    338

    Effect of Samaria-Doped Ceria (SDC) Interlayer on the Performance of La_0.6Sr_0.4Co_0.2Fe_0.8O_3-δ/SDC Composite Oxygen Electrode for Reversible Solid Oxide Fuel Cells

    K. Shimura, H. Nishino, K. Kakinuma, M. E. Brito, and H. Uchida
    Electrochim. Acta, 225, 114-120 (2017).
    http://dx.doi.org/10.1016/j.electacta.2016.12.100

    337

    Highly Active, CO-Tolerant, and Robust Hydrogen Anode Catalysts: Pt－M (M = Fe, Co, Ni) Alloys with Stabilized Pt-Skin Layers

    G. Shi, H. Yano, D. A. Tryk, A. Iiyama, and H. Uchida
    ACS Catal., 7, 267-274 (2017).
    https://doi.org/10.1021/acscatal.6b02794

    336

    In Situ FTIR Analysis of CO-Tolerance of a Pt-Fe Alloy with Stabilized Pt Skin Layers as a Hydrogen Anode Catalyst for Polymer Electrolyte Fuel Cells

    Y. Ogihara, H. Yano, T. Matsumoto, D. A. Tryk, A. Iiyama, and H. Uchida
    Catalysts, 7, 8 (2017).
    https://doi.org/10.3390/catal7010008

  2016

  • 335

    Effect of Thermal Crosslinking on the Properties of Sulfonated Poly(Phenylene Sulfone)s as Proton Conductive Membranes

    Y. Zhang, J-D. Kim, and K. Miyatake
    J. Appl. Polym. Sci, 133, 44218 (2016).
    https://doi.org/10.1002/app.44218

    334

    Particle-Size Effect of Pt Cathode Catalysts on Durability in Fuel Cells

    H. Yano, M. Watanabe, A. Iiyama, and H. Uchida
    Nano Energy, 29, 323-333 (2016).
    http://dx.doi.org/10.1016/j.nanoen.2016.02.016

    333

    Effect of an Sb-Doped SnO₂ Support on the CO-Tolerance of Pt₂Ru₃ Nanocatalysts for Residential Fuel Cells

    Y. Ogihara, H. Yano, M. Watanabe, A. Iiyama, and H. Uchida
    Catalysts, 6, 139 (2016).
    https://doi.org/10.3390/catal6090139

    332

    Use of a Sub-Gasket and Soft Gas Diffusion Layer to Mitigate Mechanical Degradation of a Hydrocarbon Membrane for Polymer Electrolyte Fuel Cells in Wet-Dry Cycling

    H. Ishikawa, T. Teramoto, Y. Ueyama, Y. Sugawara, Y. Sakiyama, M. Kusakabe, K. Mikyatake, and M. Uchida
    J. Power Sources, 325, 35-41 (2016).
    http://dx.doi.org/10.1016/j.jpowsour.2016.06.012

    331

    Experimental and Theoretical Infrared Spectroscopic Study on Hydrated Nafion Membrane

    R. K. Singh, K. Kunimatsu, K. Miyatake, and T. Tsuneda
    Macromolecules, 49, 6621-6629 (2016).
    https://doi.org/10.1021/acs.macromol.6b00999

    330

    Effect of Surface Ion Conductivity of Anion Exchange Membranes on Fuel Cell Performance

    M. Hara, T. Kimura, T. Nakamura, M. Shimada, H. Ono, S. Shimada, K. Miyatake, M. Uchida, J. Inukai, and M. Watanabe
    Langmuir, 32, 9557-9565 (2016).
    https://doi.org/10.1021/acs.langmuir.6b01747

    329

    Improvement of Cell Performance in Low-Pt-Loading PEFC Cathode Catalyst Layers Prepared by the Electrospray Method

    K. Takahashi, K. Kakinuma, and M. Uchida
    J. Electrochem. Soc., 163, F1182-F1188 (2016).
    https://doi.org/10.1149/2.0611610jes

    328

    A Novel Pt–Co Alloy Hydrogen Anode Catalyst with Superlative Activity, CO-Tolerance and Robustness

    G. Shi, H. Yano, D. A. Tryk, M. Watanabe, A. Iiyama, and H. Uchida
    Nanoscale, 8, 13893-13897 (2016).
    https://doi.org/10.1039/c6nr00778c

    327

    Load Cycle Durability of a Graphitized Carbon Black-Supported Platinum Catalyst in Polymer Electrolyte Fuel Cell Cathodes

    C. Takei, K. Kakinuma, K. Kawashima, K. Tashiro, M. Watanabe, and M. Uchida
    J. Power Sources, 324, 729-737 (2016).
    http://dx.doi.org/10.1016/j.jpowsour.2016.05.117

    326

    Simple, Effective Molecular Strategy for the Design of Fuel Cell Membranes: Combination of Perfluoroalkyl and Sulfonated Phenylene Groups

    T. Mochizuki, M. Uchida, and K. Miyatake
    ACS Energy Lett.,1, 348-352 (2016).
    https://doi.org/10.1021/acsenergylett.6b00198

    325

    Anion Conductive Aromatic Copolymers from Dimenthylaminomethylated Monomers: Synthesis, Properties, and Applications in Alkaline Fuel Cells

    R. Akiyama, N. Yokota, E. Nishino, K. Asazawa, and K. Miyatake
    Macromolecules,49, 4480-4489 (2016).
    https://doi.org/10.1021/acs.macromol.6b00408

    324

    Anion-exchange Membranes Containing Fluorinated Poly(arylene ether)s: Properties and Application in Pt-free Hydrazine Fuel Cell

    E. Nishino, J. Yamada, K. Asazawa, S. Yamaguchi, M. Shimada, J. Miyake, and K. Miyatake
    Chemistry Letters,45, 664-666 (2016).
    https://doi.org/10.1246/cl.160161

    323

    Unprecedented Dependence of the Oxygen Reduction Activity on Co Content at Pt Skin/Pt-Co(111) Single Crystal Electrodes

    M. Wakisaka, S. Kobayashi, S. Morishima, Y. Hyuga, D. A. Tryk, M. Watanabe, A. Iiyama, and H. Uchida
    Electrochem. Commun., 67, 47-50 (2016).
    http://dx.doi.org/10.1016/j.elecom.2016.03.015

    322

    Effects of Carbon Supports on Pt Distribution, Ionomer Coverage and Cathode Performance for Polymer Electrolyte Fuel Cells

    Y.-C. Park, H. Tokiwa, K. Kakinuma, M. Watanabe, and M. Uchida
    J. Power Sources, 315, 179-191 (2016).
    http://dx.doi.org/10.1016/j.jpowsour.2016.02.091

    321

    Durability of Pt Catalysts Supported on Graphitized Carbon-Black during Gas-Exchange Start-Up Operation Similar to That Used for Fuel Cell Vehicles

    Y. Yamashita, S. Itami, J. Takano, M. Kodama, K. Kakinuma, M. Hara, M. Watanabe, and M. Uchida
    J. Electrochem. Soc.,163, F644-F650 (2016).
    https://doi.org/10.1149/2.0771607jes

    320

    Anion Conductive Aromatic Polymers Containing Fluorenyl Groups: Effect of the Position and Number of Ammonium Groups

    M. Shimada, S. Shimada, J. Miyake, M. Uchida, and K. Miyatake
    J. Polym. Sci. A: Polym. Chem., 54, 935-944 (2016).
    https://doi.org/10.1002/pola.27928

    319

    Effect of Ammonium Groups on the Properties of Anion Conductive Membranes Based on Partially Fluorinated Aromatic Polymers

    A. M. A. Mahmoud, A. M. M. Elsaghier, and K. Miyatake
    RSC Adv., 6, 27862-27870 (2016).
    https://doi.org/10.1039/c6ra03256g

    318

    Highly Durable and Active PtCo Alloy/Graphitized Carbon Black Cathode Catalysts by Controlled Deposition of Stabilized Pt Skin Layers

    M. Watanabe, H. Yano, D. A. Tryk, and H. Uchida
    J. Electrochem. Soc., 163, F455-F463 (2016).
    https://doi.org/10.1149/2.0331606jes

    317

    Oxygen Reduction Reaction Activity of Carbon-Supported Pt-Fe, Pt-Co, and Pt-Ni Alloys with Stabilized Pt-Skin Layers

    M. Chiwata, H. Yano, S. Ogawa, M. Watanabe, A. Iiyama, and H. Uchida
    Electrochemistry, 84, 133–137 (2016).
    http://dx.doi.org/10.5796/electrochemistry.84.133

    316

    Effect of Sulfonated Triphenylphosphine Oxide Groups in Aromatic Block Copolymers as Proton-exchange Membranes

    J. Miyake, I. Hosaka, and K. Miyatake
    Chem. Lett., 45, 33-35 (2016).
    https://doi.org/10.1246/cl.150895

  2015

  • 315

    Influence of Pt Loading and Cell Potential on the HF Ohmic Resistance of an Nb-Doped SnO₂-Supported Pt Cathode for PEFCs

    Y. Chino, K. Kakinuma, D. A. Tryk, M. Watanabe, and M. Uchida
    J. Electrochem. Soc., 163, F97-F105 (2015).
    https://doi.org/10.1149/2.0571602jes

    314

    Anion Exchange Membranes Composed of Perfluoroalkylene Chains and Ammonium-functionalized Oligophenylenes

    H. Ono, J. Miyake, S. Shimada, M. Uchida, and K. Miyatake
    J. Mater. Chem. A, 43, 21779-21788 (2015).
    https://doi.org/10.1039/c5ta06454f

    313

    Oxygen Reduction Reaction at Binary and Ternary Nanocatalysts Based on Pt, Pd and Au

    S. Lankiang, M. Chiwata, S. Baranton, H. Uchida, and C. Coutanceau
    Electrochim. Acta, 182, 131-142 (2015).
    http://dx.doi.org/10.1016/j.electacta.2015.09.061

    312

    Visualization of Oxygen Partial Pressure and Numerical Simulation of a Running Polymer Electrolyte Fuel Cell with Straight Flow Channels to Elucidate Reaction Distributions

    K. Nagase, H. Motegi, M. Yoneda, Y. Nagumo, T. Suga, M. Uchida, J. Inukai, H. NIshide, and M. Watanabe
    Chem. Electro. Chem., 2, 1495-1501 (2015).
    https://doi.org/10.1002/celc.201402385

    311

    Catalytic Performance of Mesoporous Silica-Covered Nickel Core–Shell Particles for Selective CO Methanation

    K. Hayashi, T. Miyao, K. Higashiyama, S. Deki, Y. Tabira, and M. Watanabe
    Appl. Catal. A: Gen., 506, 143-150 (2015).
    http://dx.doi.org/10.1016/j.apcata.2015.09.003

    310

    Novel Strategy to Mitigate Cathode Catalyst Degradation during Air/Air Startup Cycling via the Atmospheric Resistive Switching Mechanism of a Hydrogen Anode with a Platinum Catalyst Supported on Tantalum-Doped Titanium Dioxide

    H. Shintani, Y. Kojima, K. Kakinuma, M. Watanabe, and M. Uchida
    J. Power Sources, 294, 292-298 (2015).
    http://dx.doi.org/10.1016/j.jpowsour.2015.06.072

    309

    Ladder-Type Aromatic Block Copolymers Containing Sulfonated Triphenylphosphine Oxide Moieties as Proton Conductive Membranes

    Y. Zhang, J. Miyake, R. Akiyama, and K. Miyatake
    Polymer, 77, 152-155 (2015).
    http://dx.doi.org/10.1016/j.polymer.2015.09.034

    308

    Catalytic Activity and Durability of a Mesoporous Silica-Coated Ni-Alumina-Based Catalyst for Selective CO Methanation

    T. Miyao, J. Tanaka, W. Shen, K. Hayashi, K. Higashiyama, and M. Watanabe
    Catalysis Today, 251, 81-87 (2015).
    http://dx.doi.org/10.1016/j.cattod.2014.10.018

    307

    A Proton Conductive Aromatic Block Copolymer Containing Dibenzofuran Moieties

    J. Miyake, M. Saito, R. Akiyama, M. Watanabe, and K. Miyatake
    Chem. Lett., 44, 964-966 (2015).
    https://doi.org/10.1246/cl.150242

    306

    Effect of the Hydrophilic Component in Aromatic Ionomers: Simple Structure Provides Improved Properties as Fuel Cell Membranes

    J. Miyake, T. Mochizuki, and K. Miyatake
    ACS Macro Lett., 4, 750-754 (2015).
    https://doi.org/10.1021/acsmacrolett.5b00385

    305

    Analysis of the Gold/Polymer Electrolyte Membrane Interface by Polarization-Modulated ATR-FTIR Spectroscopy

    K. Kunimatsu, K. Miyatake, S. Deki, H. Uchida, and M. Watanabe
    J. Phys. Chem. C, 119, 16754-16761 (2015).
    https://doi.org/10.1021/acs.jpcc.5b04622

    304

    A Sulfonated Polybenzophenone/Polyimide Copolymer as a Novel Proton Exchange Membrane

    T. Miyahara, J. Miyake, S. Matsuno, M. Watanabe, and K. Miyatake
    RSC Adv., 5, 50082-50086 (2015).
    https://doi.org/10.1039/c5ra05698e

    303

    Oxygen Reduction Reaction Activity and Durability of Pt Catalysts Supported on Titanium Carbide

    M. Chiwata, K. Kakinuma, M. Wakisaka, M. Uchida, S. Deki, M. Watanabe, and H. Uchida
    Catalysts, 5, 966-980 (2015).
    https://doi.org/10.3390/catal5020966

    302

    Effect of Adsorption of Sulfate Anions on the Activities for Oxygen Reduction Reaction on Nafion^® -coated Pt/Carbon Black Catalysts at Practical Temperatures

    H. Yano, T. Uematsu, J. Omura, M. Watanabe, and H. Uchida
    J. Electroanal. Chem., 747, 91-96 (2015).
    http://dx.doi.org/10.1016/j.jelechem.2015.04.007

    301

    Effect of Added Graphitized CB on Both Performance and Durability of Pt/Nb-SnO₂ Cathodes for PEFCs

    Y. Chino, K. Taniguchi, Y. Senoo, K. Kakinuma, M. Hara, M. Watanabe, and M. Uchida
    J. Electrochem. Soc., 162, F736-F743 (2015).
    https://doi.org/10.1149/2.0651507jes

    300

    Performance of Practical-Sized Membrane-Electrode Assemblies Using Titanium Nitride-Supported Platinum Catalysts Mixed with Acetylene Black as the Cathode Catalyst Layer

    H. Shintani, K. Kakinuma, H. Uchida, M. Watanabe, and M. Uchida
    J. Power Sources, 280, 593-599 (2015).
    http://dx.doi.org/10.1016/j.jpowsour.2015.01.132

    299

    Effects of SiO₂ Nanoparticles Incorporated into Poly(arylene ether sulfone ketone) Multiblock Copolymer Electrolyte Membranes on Fuel Cell Performance at Low Humidity

    M. Sakamoto, S. Nohara, K. Miyatake, M. Uchida, M. Watanabe, and H. Uchida
    Electrochemistry, 83, 150-154 (2015).
    http://dx.doi.org/10.5796/electrochemistry.83.150

    298

    Synthesis and Properties of Sulfonated Block Poly(arylene ether)s Containing m-Terphenyl Groups as Proton Conductive Membranes

    J. Miyake, M. Sakai, M. Sakamoto, M. Watanabe, and K. Miyatake
    J. Membr. Sci., 476, 156-161 (2015).
    http://dx.doi.org/10.1016/j.memsci.2014.11.032

    297

    Cathodic Performance and High Potential Durability of Ta-SnO_2-δ-Supported Pt Catalysts for PEFC Cathodes

    Y. Senoo, K. Taniguchi, K. Kakinuma, M. Uchida, H. Uchida, S. Deki, and M. Watanabe
    Electrochem. Commun., 51, 37-40 (2015).
    http://dx.doi.org/10.1016/j.elecom.2014.12.005

    296

    Effects of Short-Side-Chain Perfluorosulfonic Acid Ionomers as Binders on the Performance of Low Pt Loading Fuel Cell Cathodes

    Y.-C. Park, K. Kakinuma, H. Uchida, M. Watanabe, and M. Uchida
    J. Power Sources, 275, 384-391 (2015).
    http://dx.doi.org/10.1016/j.jpowsour.2014.10.149

    295

    Real-Time Visualization of Oxygen Partial Pressures in Straight Channels of Running Polymer Electrolyte Fuel Cell with Water Plugging

    K. Nagase, T. Suga, Y. Nagumo, M. Uchida, J. Inukai, H. Nishide, and M. Watanabe
    J. Power Sources, 273, 873-877 (2015).
    http://dx.doi.org/10.1016/j.jpowsour.2014.09.169

    294

    Synthesis and Properties of Sulfonated and Brominated Poly(arylene ether)s as Proton Conductive Membranes

    T. Hoshi, J. Miyake, M. Watanabe, and K. Miyatake
    Bull. Chem. Soc. Jpn., 88, 183-191 (2015).
    https://doi.org/10.1246/bcsj.20140237

    293

    Preparation and Catalytic Activity of a Mesoporous Silica-Coated Ni-Alumina-Based Catalyst for Selective CO Methanation

    T. Miyao, S. Sakurabayashi, W. Shen, K. Higashiyama, and M. Watanabe
    Catal. Commun., 58, 93-96 (2015).
    http://dx.doi.org/10.1016/j.catcom.2014.09.005

  2014

  • 292

    Electrochemical Oxidation of Hydrolyzed Poly Oxymethylene-dimethyl Ether by PtRu Catalysts on Nb-Doped SnO_2−δ Supports for Direct Oxidation Fuel Cells

    K. Kakinuma, I.-T. Kim, Y. Senoo, H. Yano, M. Watanabe, and M. Uchida
    ACS Appl. Mater. Interfaces, 6, 22138-22145 (2014).
    http://dx.doi.org/10.1021/am505553b

    291

    Oxygen Partial Pressures on Gas-Diffusion Layer Surface and Gas-Flow Channel Wall in Polymer Electrolyte Fuel Cell during Power Generation Studied by Visualization Technique Combined with Numerical Simulation

    Y. Ishigami, W. Waskitoaji, M. Yoneda, K. Takada, T. Hyakutake, T. Suga, M. Uchida, Y. Nagumo, J. Inukai, H. Nishide, and M. Watanabe
    J. Power Sources, 269, 556-564 (2014).
    http://dx.doi.org/10.1016/j.jpowsour.2014.07.017

    290

    Aromatic Copolymers Containing Ammonium-Functionalized Oligophenylene Moieties as Highly Anion Conductive Membranes

    N. Yokota, M. Shimada, H. Ono, R. Akiyama, E. Nishino, K. Asazawa, J. Miyake, M. Watanabe, and K. Miyatake
    Macromolecules, 47, 8238-8246 (2014).
    http://dx.doi.org/10.1021/ma5019878

    289

    Carbon Segregation-Induced Highly Metallic Ni Nanoparticles for Electrocatalytic Oxidation of Hydrazine in Alkaline Media

    T.-Y. Jeon, M. Watanabe, and K. Miyatake
    ACS Appl. Mater. Interfaces, 6, 18445-18449 (2014).
    http://dx.doi.org/10.1021/am5058635

    288

    Effects of Hot Liquid-Water Treatment on Local Proton Conductivity at Surfaces of Sulfonated Poly(arylene ketone) Block Copolymer Membrane for Fuel Cells Studied by Current-Sensing Atomic Force Microscopy

    M. Hara, M. Hara, K. Miyatake, J. Inukai, and M. Watanabe
    Electrochim. Acta, 143, 383-389 (2014).
    http://dx.doi.org/10.1016/j.electacta.2014.08.031

    287

    Ammonium-functionalized Poly(arylene ether)s as Anion-Exchange Membranes

    J. Miyake, M. Watanabe, and K. Miyatake
    Polym. J., 46, 656-663 (2014).
    https://doi.org/10.1038/pj.2014.56

    286

    Anion Conductive Aromatic Block Copolymers Containing Diphenyl Ether or Sulfide Groups for Application to Alkaline Fuel Cells

    N. Yokota, H. Ono, J. Miyake, E. Nishino, K. Asazawa, M. Watanabe, and K. Miyatake
    ACS Appl. Mater. Interfaces, 6, 17044-17052 (2014).
    http://dx.doi.org/10.1021/am5046586

    285

    Mechanistic Study of the Effect of Chlorine on Selective CO Methanation over Ni Alumina-Based Catalysts

    T. Miyao, W. Shen, A. Chen, K. Higashiyama, and M. Watanabe
    Appl. Catal. A: General, 486, 187-192 (2014).
    http://dx.doi.org/10.1016/j.apcata.2014.08.025

    284

    Double-Layer Ionomer Membrane for Improving Fuel Cell Performance

    T. Mochizuki, M. Uchida, H. Uchida, M. Watanabe, and K. Miyatake
    ACS Appl. Mater. Interfaces, 6, 13894-13899 (2014).
    http://dx.doi.org/10.1021/am503295y

    283

    High Catalytic Performance of Mesoporous Zirconia Supported Nickel Catalysts for Selective CO Methanation

    A. Chen, T. Miyao, K. Higashiyama, and M. Watanabe
    Catal. Sci. Technol., 4, 2508-2511 (2014).
    https://doi.org/10.1039/c4cy00461b

    282

    Effects of Incorporation of SiO₂ Nanoparticles into Sulfonated Polyimide Electrolyte Membranes on Fuel Cell Performance under Low Humidity Conditions

    M. Sakamoto, S. Nohara, K. Miyatake, M. Uchida, M. Watanabe, and H. Uchida
    Electrochim. Acta, 137, 213-218 (2014).
    http://dx.doi.org/10.1016/j.electacta.2014.05.159

    281

    Theoretical Investigation of Local Proton Conductance in the Proton Exchange Membranes

    R. K. Singh, T. Tsuneda, K. Miyatake, and M. Watanabe
    Chem. Phys. Lett., 608, 11-16 (2014).
    http://dx.doi.org/10.1016/j.cplett.2014.05.076

    280

    Improvements in Electrical and Electrochemical Properties of Nb-Doped SnO_2-δ Supports for Fuel Cell Cathodes Due to Aggregation and Pt Loading

    Y. Senoo, K. Kakinuma, M. Uchida, H. Uchida, S. Deki, and M. Watanabe
    RSC Adv., 4, 32180-32188 (2014).
    https://doi.org/10.1039/c4ra03988b

    279

    Intrapolymer Heck Reaction for Proton Conductive Ladder-type Aromatic Block Copolymers

    J. Miyake, M. Watanabe, and K. Miyatake
    RSC Adv., 4, 21049-21053 (2014).
    https://doi.org/10.1039/c4ra02582b

    278

    Proton Conductive Areas on Sulfonated Poly(arylene ketone) Multiblock Copolymer Electrolyte Membrane Studied by Current-Sensing Atomic Force Microscopy

    M. Hara, T. Miyahara, T. Hoshi, J. Ma, M. Hara, K. Miyatake, J. Inukai, N. Alonso-Vante, and M. Watanabe
    Electrochemistry, 82, 369-375 (2014).
    http://dx.doi.org/10.5796/electrochemistry.82.369

    277

    High-Performance Electrodes for Reversible Solid Oxide Fuel Cell/Solid Oxide Electrolysis Cell: Ni–Co Dispersed Ceria Hydrogen Electrodes

    R. Nishida, P. Puengjinda, H. Nishino, K. Kakinuma, M. E. Brito, M. Watanabe, and H. Uchida
    RSC Adv., 4, 16260-16266 (2014).
    https://doi.org/10.1039/c3ra47089j

    276

    Reversible/Irreversible Increase in Proton-Conductive Areas on Proton-Exchange-Membrane Surface by Applying Voltage Using Current-Sensing Atomic Force Microscope

    M. Hara, D. Hattori, J. Inukai, M. Hara, K. Miyatake, and M. Watanabe
    J. Electroanal. Chem., 716, 158-163 (2014).
    http://dx.doi.org/10.1016/j.jelechem.2013.11.035

    275

    Temperature- and Humidity-Controlled SAXS Analysis of Proton-Conductive Ionomer Membranes for Fuel Cells

    T. Mochizuki, K. Kakinuma, M. Uchida, S. Deki, M. Watanabe, and K. Miyatake
    Chem. Sus. Chem., 7, 729-733 (2014).
    https://doi.org/10.1002/cssc.201301322

    274

    Deleterious Effects of Interim Cyclic Voltammetry on Pt/Carbon Black Catalyst Degradation during Start-up/Shutdown Cycling Evaluation

    Y.-C. Park, K. Kakinuma, M. Uchida, H. Uchida, and M. Watanabe
    Electrochim. Acta, 123, 84-92 (2014).
    http://dx.doi.org/10.1016/j.electacta.2013.12.120

    273

    Investigation of the Effect of a Hydrophilic Layer in the Gas Diffusion Layer of a Polymer Electrolyte Membrane Fuel Cell on the Cell Performance and Cold Start Behaviour

    S. Hirakata, M. Hara, K. Kakinuma, M. Uchida, D. A. Tryk, H. Uchida, and M. Watanabe
    Electrochim. Acta, 120, 240-247 (2014).
    http://dx.doi.org/10.1016/j.electacta.2013.12.050

    272

    Effect of Ammonium Groups on the Properties and Alkaline Stability of Poly(arylene ether)-Based Anion Exchange Membranes

    J. Miyake, K. Fukasawa, M. Watanabe, and K. Miyatake
    J. Polym. Sci. A: Polym. Chem., 52, 383-389 (2014).
    https://doi.org/10.1002/pola.27011

    271

    Electrochemical Quartz Crystal Microbalance Analysis of the Oxygen Reduction Reaction on Pt-Based Electrodes. Part 2: Adsorption of Oxygen Species and ClO₄^－ Anions on Pt and Pt－Co Alloy in HClO₄ Solutions

    J. Omura, H. Yano, D. A. Tryk, M. Watanabe, and H. Uchida
    Langmuir, 30, 432-439 (2014).
    http://dx.doi.org/10.1021/la404188p

  2013

  • 270

    Characterization of Pt Catalysts on Nb-Doped and Sb-Doped SnO_2-δ Support Materials with Aggregated Structure by Rotating Disk Electrode and Fuel Cell Measurements

    K. Kakinuma, Y. Chino, Y. Senoo, M. Uchida, T. Kamino, H. Uchida, S. Deki, and M. Watanabe
    Electrochim. Acta, 110, 316-324 (2013).
    http://dx.doi.org/10.1016/j.electacta.2013.06.127

    269

    Proton Conductive Aromatic Block Copolymers from a New Bistriazole Monomer

    R. Akiyama, D. Hirayama, M. Saito, J. Miyake, M. Watanabe, and K. Miyatake
    RSC Adv., 3, 20202-20208 (2013).
    https://doi.org/10.1039/c3ra42160k

    268

    Hydrolyzed Polyoxymethylenedimethylethers as Liquid Fuels for Direct Oxidation Fuel Cells

    S. Baranton, H. Uchida, D. A. Tryk, J. L. Dubois, and M. Watanabe
    Electrochim. Acta, 108, 350-355 (2013).
    http://dx.doi.org/10.1016/j.electacta.2013.06.138

    267

    Investigation of the Effect of Pore Diameter of Gas Diffusion Layers on Cold Start Behavior and Cell Performance of Polymer Electrolyte Membrane Fuel Cells

    S. Hirakata, T. Mochizuki, M. Uchida, H. Uchida, and M. Watanabe
    Electrochim. Acta, 108, 304-312 (2013).
    http://dx.doi.org/10.1016/j.electacta.2013.06.150

    266

    Correlation between Surface Chemical Composition with Catalytic Activity and Selectivity of Organic-Solvent Synthesized Pt–Ti Nanoparticles

    J. Ma, A. Habrioux, T. Miyao, K. Kakinuma, J. Inukai, M. Watanabe, and N. A.-Vante
    J. Mater. Chem. A, 1, 8798-8804 (2013).
    https://doi.org/10.1039/c3ta11499f

    265

    Sulfonated Poly(arylene ether phosphine oxide ketone) Block Copolymers as Oxidatively Stable Proton Conductive Membranes

    J. Miyake, M. Watanabe, and K. Miyatake
    ACS Appl. Mater. Interfaces, 5, 5903-5907 (2013).
    http://dx.doi.org/10.1021/am401625j

    264

    Effect of the State of Distribution of Supported Pt Nanoparticles on Effective Pt Utilization in Polymer Electrolyte Fuel Cells

    M. Uchida, Y.-C. Park, K. Kakinuma, H. Yano, D. A. Tryk, T. Kamino, H. Uchida, and M. Watanabe
    Phys. Chem. Chem. Phys., 15, 11236-11247 (2013).
    https://doi.org/10.1039/c3cp51801a

    263

    Structural Variations of CO Adlayers on a Pt(100) Electrode in 0.1 M HClO₄ Solution: an in Situ STM Study

    M. Wakisaka, T. Yoneyama, S. Ashizawa, Y. Hyuga, T. Ohkanda, H. Uchida, and M. Watanabe
    Phys. Chem. Chem. Phys., 15, 11038–11047 (2011).
    https://doi.org/10.1039/c3cp51178b

    262

    Synthesis and Properties of Partially Fluorinated Poly(arylene ether) Block Copolymers Containing Ammonium Groups as Anion Conductive Membranes

    H. Ono, J. Miyake, B. Bae, M. Watanabe, and K. Miyatake
    Bull. Chem. Soc. Jpn., 86, 663-670 (2013).
    https://doi.org/10.1246/bcsj.20130017

    261

    Imaging Individual Proton-Conducting Spots on Sulfonated Multiblock-Copolymer Membrane under Controlled Hydrogen Atmosphere by Current-Sensing Atomic Force Microscopy

    M. Hara, D. Hattori, J. Inukai, B. Bae, T. Hoshi, M. Hara, K. Miyatake, and M. Watanabe
    J. Phys. Chem. B, 117, 3892-3899 (2013).
    http://dx.doi.org/10.1021/jp312041c

    260

    High Durability of Pt/Graphitized Carbon Catalysts for Polymer Electrolyte Fuel Cells Prepared by the Nanocapsule Method

    H. Yano, T. Akiyama, M. Watanabe, and H. Uchida
    J. Electroanal. Chem., 688, 137-142 (2013).
    http://dx.doi.org/10.1016/j.jelechem.2012.09.028

    259

    Direct STM Elucidation of the Effects of Atomic-Level Structure on Pt(111) Electrodes for Dissolved CO Oxidation

    J. Inukai, D. A. Tryk, T. Abe, M. Wakisaka, H. Uchida, and M. Watanabe
    J. Am. Chem. Soc., 135, 1476-1490 (2013).
    http://dx.doi.org/10.1021/ja309886p

    258

    ATR-FTIR Analysis of the State of Water in a Sulfonated Block Poly(arylene ether sulfone ketone) Membrane and Proton Conductivity Measurement during the Hydration/Dehydration Cycle

    K. Kunimatsu, K. Yagi, B. Bae, K. Miyatake, H. Uchida, and M. Watanabe
    J. Phys. Chem. C, 117, 3762-3771 (2013).
    http://dx.doi.org/10.1021/jp310258u

    257

    Investigation of the Corrosion of Carbon Supports in Polymer Electrolyte Fuel Cells Using Simulated Start-up/Shutdown Cycling

    Y.-C. Park, K. Kakinuma, M. Uchida, D. A. Tryk, T. Kamino, H. Uchida, and M. Watanabe
    Electrochim. Acta, 91, 195-207 (2013).
    http://dx.doi.org/10.1016/j.electacta.2012.12.082

    256

    Experimental Analyses of Low Humidity Operation Properties of SiO₂-Containing Catalyst Layers for Polymer Electrolyte Fuel Cells

    N. Inoue, M. Uchida, M. Watanabe, and H. Uchida
    Electrochim. Acta, 88, 807-813 (2013).
    http://dx.doi.org/10.1016/j.electacta.2012.10.134

  2012

  • 255

    Overview of Recent Developments in Oxygen Reduction Electrocatalysis

    M. Watanabe, D. A. Tryk, M. Wakisaka, H. Yano, and H. Uchida
    Electrochim. Acta, 84, 187-201 (2012).
    http://dx.doi.org/10.1016/j.electacta.2012.04.035

    254

    Temperature Dependence of Oxygen Reduction Reaction Activity at Stabilized Pt Skin-PtCo Alloy/Graphitized Carbon Black Catalysts Prepared by a Modified Nanocapsule Method

    K. Okaya, H. Yano, K. Kakinuma, M. Watanabe, and H. Uchida
    ACS Appl. Mater. Interfaces, 4, 6982-6991 (2012).
    http://dx.doi.org/10.1021/am302224n

    253

    Effect of Platinum Loading on Fuel Cell Cathode Performance Using Hydrocarbon Ionomers as Binder

    T. Omata, M. Uchida, H. Uchida, M. Watanabe, and K. Miyatake
    Phys. Chem. Chem. Phys., 14, 16713-16718 (2012).
    https://doi.org/10.1039/c2cp42997g

    252

    In Situ ATR-FTIR Analysis of the Structure of Nafion-Pt/C and Nafion-Pt₃Co/C Interfaces in Fuel Cell

    H. Hanawa, K. Kunimatsu, M. Watanabe, and H. Uchida
    J. Phys. Chem. C, 116, 21401-21406 (2012).
    http://dx.doi.org/10.1021/jp306955q

    251

    Micro-Raman Study on Water Distribution Inside a Nafion Membrane during Operation of Polymer Electrolyte Fuel Cell

    M. Hara, J. Inukai, B. Bae, T. Hoshi, K. Miyatake, M. Uchida, H. Uchida, and M. Watanabe
    Electrochim. Acta, 82, 277-283 (2012).
    http://dx.doi.org/10.1016/j.electacta.2012.04.099

    250

    Durability of an Aromatic Block Copolymer Membrane in Practical PEFC Operation

    T. Okanishi, T. Yoda, Y. Sakiyama, T. Miyahara, K. Miyatake, M. Uchida, and M. Watanabe
    Electrochem. Commun., 24, 47-49 (2012).
    https://doi.org/10.1016/j.elecom.2012.08.010

    249

    Complete NMR Assignment of a Sulfonated Aromatic Block Copolymer via Heteronuclear Single-quantum Correlation, Heteronuclear Multiple-bond Correlation and Heteronuclear Single-quantum Correlation Total Correlation Spectroscopy

    M. Takasaki, K. Kimura, Y. Nakagawa, N. Sato, B. Bae, K. Miyatake, and M. Watanabe
    Polym. J., 44, 845-849 (2012).
    https://doi.org/10.1038/pj.2012.125

    248

    Synthesis of Superacid-modified Poly(arylene ether sulfone)s via Post-bromination

    T. Shimura, M. Watanabe, and K. Miyatake
    RSC Adv., 2, 5199-5204 (2012).
    https://doi.org/10.1039/c2ra20444d

    247

    Block Poly(arylene ether sulfone ketone)s Containing Densely Sulfonated Linear Hydrophilic Segments as Proton Conductive Membranes

    K. Miyatake, D. Hirayama, B. Bae, and M. Watanabe
    Polym. Chem., 3, 2517-2522 (2012).
    https://doi.org/10.1039/c2py20318a

    246

    Sulfonated Polybenzophenone/Poly(arylene ether) Block Copolymer Membranes for Fuel Cell Applications

    T. Miyahara, T. Hayano, S. Matsuno, M. Watanabe, and K. Miyatake
    ACS Appl. Mater. Interfaces, 4, 2881-2884 (2012).
    http://dx.doi.org/10.1021/am300821v

    245

    Preparation of Titanium Nitride-supported Platinum Catalysts with Well Controlled Morphology and Their Properties Relevant to Polymer Electrolyte Fuel Cells

    K. Kakinuma, Y. Wakasugi, M. Uchida, T. Kamino, H. Uchida, S. Deki, and M. Watanabe
    Electrochim. Acta, 77, 279-284 (2012).
    http://dx.doi.org/10.1016/j.electacta.2012.06.001

    244

    Real-Time Visualization of CO₂ Generated by Corrosion of the Carbon Support in a PEFC Cathode

    Y. Ishigami, I. Maeda, K. Takada, T. Hyakutake, T. Suga, J. Inukai, M. Uchida, Y. Nagumo, H. Nishide, and M. Watanabe
    Electrochem. Solid-State Lett., 15, B51-B53 (2012).
    https://doi.org/10.1149/2.018204esl

    243

    Electrochemical and Raman Spectroscopic Evaluation of Pt/Graphitized Carbon Black Catalyst Durability for the Start/Stop Operating Condition of Polymer Electrolyte Fuel Cells

    M. Hara, M. Lee, C.-H. Liu, B. Chen, Y. Yamashita, M. Uchida, H. Uchida, and M. Watanabe
    Electrochim. Acta, 70, 171-181 (2012).
    https://doi.org/10.1016/j.electacta.2012.03.043

    242

    Synthesis and Properties of Sulfonated Poly(arylene ether) Block Copolymers as Proton Conductive Membranes

    T. Hoshi, B. Bae, M. Watanabe, and K. Miyatake
    Bull. Chem. Soc. Jpn., 85, 389-396 (2012).
    https://doi.org/10.1246/bcsj.20110305

    241

    Electrochemical Behavior of Pt-Co(111), (100) and (110) Alloy Single-crystal Electrodes in 0.1 M HClO₄ and 0.05 M H₂SO₄ Solution as a Function of Co Content

    M. Wakisaka, S. Morishima, Y. Hyuga, H. Uchida, and M. Watanabe
    Electrochem. Commun., 18, 55-57 (2012).
    https://doi.org/10.1016/j.elecom.2012.02.008

    240

    Effect of Particle Size and Composition on CO-Tolerance at Pt-Ru/C Catalysts Analyzed by In Situ Attenuated Total Reflection FTIR Spectroscopy

    T. Sato, K. Okaya, K. Kunimatsu, H. Yano, M. Watanabe, and H. Uchida
    ACS Catal., 2, 450-455 (2012).
    http://dx.doi.org/10.1021/cs200550t

    239

    Durability of Sulfonated Polyimide Membrane in Humidity Cycling for Fuel Cell Applications

    K. Miyatake, H. Furuya, M. Tanaka, and M. Watanabe
    J. Power Sources, 204, 74-78 (2012).
    https://doi.org/10.1016/j.jpowsour.2011.12.039

    238

    SiO₂-Containing Catalyst Layers for PEFCs Operating under Low Humidity

    N. Inoue, M. Uchida, M. Watanabe, and H. Uchida
    Electrochem. Commun., 16, 100-102 (2012).
    https://doi.org/10.1016/j.elecom.2011.12.009

  2011

  • 237

    Preparation and Fuel Cell Performance of Catalyst Layers Using Sulfonated Polyimide Ionomers

    T. Omata, M. Tanaka, K. Miyatake, M. Uchida, H. Uchida, and M. Watanabe
    ACS Appl. Mater. Interfaces, 4, 730-737 (2011).

    236

    Effect of PEFC Operating Conditions on the Durability of Sulfonated Polyimide Membranes

    T. Okanishi, Y. Tsuji, Y. Sakiyama, S. Matsuno, B. Bae, K. Miyatake, M. Uchida, and M. Watanabe
    Electrochim. Acta, 58, 589-598 (2011).

    235

    Temperature Dependence of the Water Distribution Inside a Nafion Membrane in an Operating Polymer Electrolyte Fuel Cell. A Micro-Raman Study

    M. Hara, J. Inukai, K. Miyatake, H. Uchida, and M. Watanabe
    Electrochim. Acta, 58, 449-455 (2011).

    234

    Electrochemical Quartz Crystal Microbalance Analysis of the CO Oxidation Reaction at Pt Alloy Electrodes

    I. Kanezashi, S. Nohara, J. Omura, M. Watanabe, and H. Uchida
    J. Electroanal. Chem., 662, 123-129 (2011).

    233

    Effect of PEFC Operating Conditions on the Durability of Sulfonated Poly(arylene ether sulfone ketone) Multiblock Membranes

    T. Okanishi, Y. Tsuji, Y. Sakiyama, S. Matsuno, B. Bae, K. Miyatake, M. Uchida, and M. Watanabe
    Electrochim. Acta, 56, 8989-8996 (2011).

    232

    Synthesis and Properties of Sulfonated Poly(arylene ether)s Containing Azole Groups

    B. Bae, S. Kawamura, K. Miyatake, and M. Watanabe
    J. Polym. Sci. A: Polym. Chem., 49, 3863-3873 (2011).

    231

    Fluorene-Containing Cardo Polymers as Ion Conductive Membranes for Fuel Cells

    K. Miyatake, B. Bae, and M. Watanabe
    Polym. Chem., 2, 1919-1929 (2011).

    230

    Polyimide Ionomer Containing Superacid Groups

    J. Saito, M. Tanaka, M. Hirai, M. Nanasawa, K. Miyatake, and M. Watanabe
    Polym. Adv. Technol., 22, 1305-1310 (2011).

    229

    Sulfonated Poly(arylene ether sulfone ketone) Multiblock Copolymers with Highly Sulfonated Blocks. Long-Term Fuel Cell Operation and Post-Test Analyses

    B. Bae, K. Miyatake, M. Uchida, H. Uchida, Y. Sakiyama, T. Okanishi, and M. Watanabe
    ACS Appl. Mater. Interfaces, 3, 2786-2793 (2011).

    228

    Polybenzimidazole Block Sulfonated Poly(arylene ether sulfone) Ionomers

    F. Ng, B. Bae, K. Miyatake, and M. Watanabe
    Chem. Commun., 47, 8895-8897 (2011).

    227

    Anion Conductive Block Poly(arylene ether)s: Synthesis, Properties, and Application in Alkaline Fuel Cells

    M. Tanaka, K. Fukasawa, E. Nishino, S. Yamaguchi, K. Yamada, H. Tanaka, B. Bae, K. Miyatake, and M. Watanabe
    J. Am. Chem. Soc., 133, 10646-10654 (2011).

    226

    Sulfonated Block Poly(arylene ether sulfone) Membranes for Fule Cell Applications via Oligomeric Sulfonation

    B. Bae, T. Hoshi, K. Miyatake, and M. Watanabe
    Macromolecules, 44, 3884-3892 (2011).

    225

    Adsorption and Oxidation of Carbon Monoxide on Pt/C, Pt₃Co/C, and PtRu/C Catalysts Studied by In-Situ Attenuated Total Reflection Fourier-Transform Infrared

    T. Sato, K. Kunimatsu, M. Watanabe, and H. Uchida
    J. Nanosci. Nanotechnol., 11, 5123-5130 (2011).

    224

    Electrochemical Activity and Durability of Platinum Catalysts Supported on Nanometer-Size Titanium Nitride Particles for Polymer Electrolyte Fuel Cells

    K. Kakinuma, Y. Wakasugi, M. Uchida, T. Kamino, H. Uchida, and M. Watanabe
    Electrochemistry, 79, 399-403 (2011).

    223

    Imaging of Water Droplets Formed during PEFC Operation on GDLs with Different Pore Sizes

    K. Takada, Y. Ishigami, S. Hirakata, M. Uchida, Y. Nagumo, J. Inukai, H. Nishide, and M. Watanabe
    Electrochemistry, 79, 388-391 (2011).

    222

    Durability of Pt/Graphitized Carbon Catalyst Prepared by the Nanocapsule Method for the Start/Stop Operating Condition of Polymer Electrolyte Fuel Cells

    M. Lee, M. Uchida, K. Okaya, H. Uchida, and M. Watanabe
    Electrochemistry, 79, 381-387 (2011).

    221

    Electrocatalysis of the Oxygen Reduction Reaction at Pt and Pt-Alloys

    H. Uchida, H. Yano, M. Wakisaka, and M. Watanabe
    Electrochemistry, 79, 303-311 (2011).

    220

    Electrochemical Quartz Crystal Microbalance Analysis of the Oxygen Reduction Reaction on Pt-Based Electrodes. Part 1: Effect of Adsorbed Anions on the Oxygen Reduction Activities of Pt in HF, HClO₄, and H₂SO₄ Solutions

    J. Omura, H. Yano, M. Watanabe, and H. Uchida
    Langmuir, 27, 6464-6470 (2011).

    219

    The Effectiveness of Platinum/Carbon Electrocatalysts: Dependence on Catalyst Layer Thickness and Pt Alloy Catalytic Effects

    M. Lee, M. Uchida, D. A. Tryk, H. Uchida, and M. Watanabe
    Electrochim. Acta, 56, 4783-4790 (2011).

    218

    Structural Effects on the Surface Oxidation Processes at Pt Single-Crystal Electrodes Studied by X-ray Photoelectron Spectroscopy

    M. Wakisaka, Y. Udagawa, H. Suzuki, H. Uchida, and M. Watanabe
    Energy Environ. Sci., 4, 1662-1666 (2011).

    217

    ATR-FTIR Study of Water in Nafion Membrane Combined with Proton Conductivity Measurements during　Hydration/Dehydration Cycle

    K. Kunimatsu, B. Bae, K. Miyatake, H. Uchida, and M. Watanabe
    J. Phys. Chem. B, 115, 4315-4321 (2011).

    216

    Preparation of a Mesoporous Ceria-Zirconia Supported Ni-Fe Catalyst for the High Temperature Water-Gas Shift Reaction

    K. Watanabe, T. Miyao, K. Higashiyama, H. Yamashita, and M. Watanabe
    Catal. Commun., 12, 976-979 (2011).

    215

    Corrosion of Carbon Supports at Cathode during Hydrogen/Air Replacement at Anode Studied by Visualization of Oxygen Partial Pressures in a PEFC-Start-up/Shut-down Simulation

    Y. Ishigami, K. Takada, H. Yano, J. Inukai, M. Uchida, Y. Nagumo, T. Hyakutake, H. Nishide, and M. Watanabe
    J. Power Sources, 196, 3003-3008 (2011).

    214

    Simultaneous Visualization of Oxygen Distribution and Water Blockages in an Operating Triple-Serpentine Polymer Electrolyte Fuel Cell

    K. Takada, Y. Ishigami, J. Inukai, Y. Nagumo, H. Takano, H. Nishide, and M. Watanabe
    J. Power Sources, 196, 2635-2639 (2011).

    213

    Compact Fuel Processor by Employing Monolithic Catalyst for 1kW Class Residential Polymer Electrolyte Fuel Cells

    S. Komori, M. Kimura, K. Watanabe, T. Takazoe, T. Naoi, T. Miyao, K. Higashiyama, H. Yamashita, and M. Watanabe
    J. Jpn. Petrol. Inst., 54, 52-55 (2011).

    212

    Metal-monolithic Catalyst for Selective CO Methanation

    S. Komori, A. Chan, T. Miyao, K. Higashiyama, H. Yamashita, and M. Watanabe
    J. Jpn. Petrol. Inst., 54, 50-51 (2011).

    211

    Synthesis and Electrochemical Characterization of Pt Catalyst Supported on Sn_0.96Sb_0.04O_2−δ with a Network Structure

    K. Kakinuma, M. Uchida, T. Kamino, H. Uchida, and M. Watanabe
    Electrochim. Acta, 56, 2881-2887 (2011).

    210

    Facile Preparation and Electrochemical Behavior of Pt_100-XCo_X(111) Single-Crystal Electrodes in 0.1 M HClO₄

    M. Wakisaka, Y. Hyuga, K. Abe, H. Uchida, and M. Watanabe
    Electrochem. Commun., 13, 317-320 (2011).

    209

    Luminescent Sensory Polymer Coating Composed of Platinumporphyrin and Poly(trimethylsilylpropyne) for Real-Time Oxygen Visualization in Operating PEFCs

    T. Hyakutake, Y. Ishigami, J. Kato, J. Inukai, K. Miyatake, H. Nishide, and M. Watanabe
    Macromol. Chem. Phys., 212, 42-47 (2011).

    208

    In Situ ATR-FTIR Analysis of the CO-Tolerance Mechanism on Pt₂Ru₃/C Catalysts Prepared by the Nanocapsule Method

    T. Sato, K. Kunimatsu, K. Okaya, H. Yano, M. Watanabe, and H. Uchida
    Energy Environ. Sci., 4, 433-438 (2011).

    207

    Ni-Fe-Ce Mixed Nano-Composites Oxide Catalyst Prepared by Solution-spray Plasma Technique for High Temperature Water-gas-shift Reaction

    K. Watanabe, S. Komori, T. Miyao, K. Higashiyama, H. Yamashita, and M. Watanabe
    J. Jpn. Petrol. Inst., 53, 367-368 (2011).

    206

    Electro-oxidation of Hydrolysed Poly-Oxymethylene-Dimethylether on PtRu Supported Catalysts

    D. Devaux, H. Yano, H. Uchida, J. -L. Dubois, and M. Watanabe
    Electrochim. Acta, 56, 1460-1465 (2011).

    205

    Synthesis and Properties of Multiblock Copoly(arylene ether)s Containing Superacid Groups for Fuel Cell Membranes

    T. Mikami, K. Miyatake, and M. Watanabe
    J. Polym. Sci. A: Polym. Chem., 49, 452-464 (2011).

    204

    Synthesis and Properties of Anion Conductive Ionomers Containing Fluorenyl Groups for Alkaline Fuel Cell Applications

    M. Tanaka, M. Koike, K. Miyatake, and M. Watanabe
    Polym. Chem., 2, 99-106 (2011).

  2010

  • 203

    High Catalytic Performance of Ruthenium-Doped Mesoporous Nickel-Aluminum Oxides for Selective CO Methanation

    A. Chen, T. Miyao, K. Higashiyama, H. Yamashita, and M. Watanabe
    Angew. Chem. Int. Ed., 49, 9895-9898 (2010).

    202

    Sulfonated Poly(arylene ether sulfone ketone) Multiblock Copolymers with Highly Sulfonated Block. Fuel Cell Performance

    B. Bae, T. Yoda, K. Miyatake, M. Uchida, H. Uchida, and M. Watanabe
    J. Phys. Chem. B, 114, 10481-10487 (2010).

    201

    New Evaluation Method for the Effectiveness of Platinum/Carbon Electrocatalysts under Operating Conditions

    M. Lee, M. Uchida, H. Yano, D. A. Tryk, H. Uchida, and M. Watanabe
    Electrochim. Acta, 55, 8504-8512 (2010).

    200

    Temperature Dependence of Oxygen Reduction Activity at Nafion-Coated Pt/Graphitized Carbon Black Catalysts Prepared by the Nanocapsule Method

    H. Yano, T. Akiyama, H. Uchida, and M. Watanabe
    Energy Environ. Sci., 3, 1511-1514 (2010).

    199

    Pt-Porpholactone- and -Porphyrin-Based Luminescent Sensory Polymer Coating for Visualization of Oxygen Pressure Distribution on Biplanar Surface

    W. Waskitoaji, T. Hyakutake, M. Watanabe, and H. Nishide
    Reactive & Functional Polymers, 70, 669-673 (2010).

    198

    Poly(arylene ether)s Containing Superacid Groups as Proton Exchange Membranes

    T. Mikami, K. Miyatake, and M. Watanabe
    ACS Appl. Mater. Interfaces, 2, 1714-1721 (2010).

    197

    Synthesis, Properties, and Fuel Cell Performance of Perfluorosulfonated Poly(arylene ether)s

    T. Shimura, K. Miyatake, and M. Watanabe
    Bull. Chem. Soc. Jpn., 83, 960-968 (2010).

    196

    Proton Conductive Polyimide Ionomer Membranes: Effect of NH, OH, and COOH Groups

    J. Saito, M. Tanaka, K. Miyatake, and M. Watanabe
    J. Polym. Sci. A: Polym. Chem., 48, 2846-2854 (2010).

    195

    In Situ STM Observation of the CO Adlayer on a Pt(110) Electrode in 0.1 M HClO₄ Solution

    M. Wakisaka, S. Asizawa, T. Yoneyama, H. Uchida, and M. Watanabe
    Langmuir, 26, 9191-9194 (2010).

    194

    Selective Methanation of CO in Hydrogen-Rich Gases Involving Large Amounts of CO₂ over Ru-Modified Ni-Al Mixed Oxide Catalysts

    M. Kimura, T. Miyao, S. Komori, A. Chen, K. Higashiyama, H. Yamashita, and M. Watanabe
    Applied Catalysis A: General, 379, 182-187 (2010).

    193

    TEM of Monodisperse Pt₂Ru₃/CB Catalysts Synthesized by the Nanocapsule Method

    P. Bele, H. Uchida, K. Okaya, H. Yano, U. Stimming, and M. Watanabe
    Microscopy and Analysis, 24, 5-7 (2010).

    192

    In Situ STM Observation of Morphological Changes of the Pt(111) Electrode Surface during Potential Cycling in 10 mM HF Solution

    M. Wakisaka, S. Asizawa, H. Uchida, and M. Watanabe
    Phys. Chem. Chem. Phys., 12, 4184-4190 (2010).

    191

    Durability of Pt/Graphitized Carbon Catalysts for the Oxygen Reduction Reaction Prepared by the Nanocapsule Method

    H. Yano, T. Akiyama, P. Bele, H. Uchida, and M. Watanabe
    Phys. Chem. Chem. Phys., 12, 3806-3814 (2010).

    190

    Control of Particle Size of Pt and Pt Alloy Electrocatalysts Supported on Carbon Black by the Nanocapsule Method

    K. Okaya, H. Yano, H. Uchida, and M. Watanabe
    ACS Appl. Mater. Interfaces, 2, 888-895 (2010).

    189

    Sulfonated Poly(arylene ether sulfone ketone) Multiblock Copolymers with Highly Sulfonated Block. Synthesis and Properties

    B. Bae, K. Miyatake, and M. Watanabe
    Macromolecules, 43, 2684-2691 (2010).

    188

    Anion Conductive Aromatic Ionomers Containing Fluorenyl Groups

    M. Tanaka, M. Koike, K. Miyatake, and M. Watanabe
    Macromolecules, 43, 2657-2659 (2010).

    187

    Gas Diffusion Electrodes Containing Sulfonated Poly(arylene ether) Ionomer for PEFCs Part 2. Improvement of the Cathode Performance

    T. Yoda, T. Shimura, B. Bae, K. Miyatake, M. Uchida, H. Uchida, and M. Watanabe
    Electrochim. Acta, 55, 3464-3470 (2010).

    186

    Proton-Conductive Aromatic Ionomers Containing Highly Sulfonated Blocks for High-Temperature-Operable Fuel Cells

    B. Bae, T. Yoda, K. Miyatake, H. Uchida, and M. Watanabe
    Angew. Chem. Int. Ed., 49, 317-320 (2010).

    185

    In-situ ATR-FTIR Study of Oxygen Reduction at the Pt/Nafion Interface

    K. Kunimatsu, T. Yoda, D. A. Tryk, H. Uchida, and M. Watanabe
    Phys. Chem. Chem. Phys., 12, 621-629 (2010).

  2009

  • 184

    High Temperature Water-Gas Shift Reaction over Hollow Ni-Fe-Al Oxide Nano-Composite Catalysts Prepared by the Solution-Spray Plasma Technique

    K. Watanabe, T. Miyao, K. Higashiyama, H. Yamashita, and M. Watanabe
    Catal. Commun., 10, 1952-1955 (2009).

    183

    Biplanar Visualization of Oxygen Pressure by Sensory Coatings of Luminescent Pt-Porpholactone and -Porphyrin Polymers

    W. Waskitoaji, T. Hyakutake, J. Kato, M. Watanabe, and H. Nishide
    Chem. Lett., 38, 1121-1206 (2009).

    182

    H₂O-Tolerant Monolithic Catalysts for Preferential Oxidation of Carbon Monoxide in the Presence of Hydrogen

    N. Maeda, T. Matsushima, M. Kotobuki, T. Miyao, H. Uchida, H. Yamashita, and M. Watanabe
    Appl. Catal. A: Gen., 370, 50-53 (2009).

    181

    Aromatic Ionomers with Superacid Groups

    K. Miyatake, T. Shimura, T. Mikami, and M. Watanabe
    Chem. Commun., 2009, 6403-6405 (2009).

    180

    In situ ATR-FTIR Study of Bulk CO Oxidation on a Polycrystalline Pt Electrode

    H. Hanawa, K. Kunimatsu, H. Uchida, and M. Watanabe
    Electrochim. Acta, 54, 6276-6285 (2009).

    179

    STEM Image Analysis Using LAT Image Processing

    P. Bele, U. Stimming, H. Yano, H. Uchida, and M. Watanabe
    Image and Microscopy, 11, 34-38 (2009).

    178

    Luminescent Multi-Layered Polymer Coating for the Simultaneous Detection of Oxygen Pressure and Temperature

    T. Hyakutake, H. Taguchi, J. Kato, H. Nishide, and M. Watanabe
    Macromol. Chem. Phys., 210, 1230-1234 (2009).

    177

    Synthesis and Properties of Sulfonated Block Copolymers Having Fluorenyl Groups for Fuel-Cell Applications

    B. Bae, K. Miyatake, and M. Watanabe
    ACS Appl. Mater. Interfaces, 1, 1279-1286 (2009).

    176

    Synthesis of Nickel Nanoparticles Supported on Hollow Samaria-Doped Ceria Particles via the Solution-Spray Plasma Technique: Anode Catalysts for SOFCs

    R. Nishida, K. Kakinuma, H. Nishino, T. Kamino, H. Yamashita, M. Watanabe, and H. Uchida
    Solid State Ionics, 180, 968-972 (2009).

    175

    Role of Adsorbed Species in Methanol Oxidation on Pt Studied by ATR-FTIRAS Combined with Linear Potential Sweep Voltammetry

    K. Kunimatsu, H. Hanawa, H. Uchida, and M. Watanabe
    J. Electroanal. Chem., 632, 109-119 (2009).

    174

    Oxygen Reduction at the Pt/Carbon Black-Polyimide Ionomer Interface

    K. Miyatake, T. Omata, D. A. Tryk, H. Uchida, and M. Watanabe
    J. Phys. Chem. C, 113, 7772-7778 (2009).

    173

    Gas Diffusion Electrodes Containing Sulfonated Poly(arylene ether) Ionomer for PEFCs: Part 1. Effect of Humidity on the Cathode Performance

    T. Yoda, T. Shimura, B. Bae, K. Miyatake, M. Uchida, H. Uchida, and M. Watanabe
    Electrochim. Acta, 54, 4328-4333 (2009).

    172

    Effect of the Hydrophobic Component on the Properties of Sulfonated Poly(arylene ether sulfone)s

    B. Bae, K. Miyatake, and M. Watanabe
    Macromolecules, 42, 1873-1880 (2009).

    171

    Temperature-Dependence of Hydrogen Oxidation Reaction Rates and CO-Tolerance at Carbon-Supported Pt, Pt-Co, and Pt-Ru Catalysts

    H. Uchida, K. Izumi, K. Aoki, and M. Watanabe
    Phys. Chem. Chem. Phys., 11, 1771-1779 (2009).

    170

    Polarization Properties of La_0.6Sr_0.4Co_0.2Fe_0.8O₃-Based Double Layer-Type Oxygen Electrodes for Reversible SOFCs

    Y. Tao, H. Nishino, S. Ashidate, H. Kokubo, M. Watanabe, and H. Uchida
    Electrochim. Acta, 54, 3309-3315 (2009).

    169

    Effects of the Decomposition Products of Sulfonated Polyimide and Nafion Membranes on the Degradation and Recovery of Electrode Performance in PEFCs

    A. Kabasawa, J. Saito, K. Miyatake, H. Uchida, and M. Watanabe
    Electrochim. Acta, 54, 2754-2760 (2009).

    168

    Identification and Quantification of Oxygen Species Adsorbed on Pt(111) Single-Crystal and Polycrystalline Pt Electrodes by Photoelectron Spectroscopy

    M. Wakisaka, H. Suzuki, S. Mitsui, H. Uchida, and M. Watanabe
    Langmuir, 25, 1897-1900 (2009).

    167

    Durability of a Novel Sulfonated Polyimide Membrane in Polymer Electrolyte Fuel Cell Operation

    A. Kabasawa, J. Saito, H. Yano, K. Miyatake, H. Uchida, and M. Watanabe
    Electrochim. Acta, 54, 1076-1082 (2009).

  2008

  • 166

    Poly(arylene ether) Ionomers Containing Sulfofluorenyl Groups: Effect of Electron-withdrawing Groups on the Properties

    T. Shimura, K. Miyatake, and M. Watanabe
    Eur. Polym. J., 44, 4054-4062 (2008).

    165

    Influence of Decomposition Products from Perfluorosulfonic Acid Membrane on Fuel Cell Performance

    A. Kabasawa, H. Uchida, and M. Watanabe
    Electrochem. Solid-State Lett., 11, B190-B192 (2008).

    164

    Temperature Dependence of Co-adsorption of Carbon Monoxide and Water on Highly Dispersed Pt/C and PtRu/C Electrodes Studied by In-Situ ATR-FTIRAS

    M. Watanabe, T. Sato, K. Kunimatsu, and H. Uchida
    Electrochim. Acta, 53, 6928-6937 (2008).

    163

    Role of Terrace/Step Edge Sites in CO Adsorption/Oxidation on a Polycrystalline Pt Electrode Studied by in Situ ATR-FTIR Method

    K. Kunimatsu, T. Sato, H. Uchida, and M. Watanabe
    Electrochim. Acta, 53, 6104-6110 (2008).

    162

    Temperature Dependence of Oxygen Reduction Activity at Carbon-Supported Pt_XCo (X=1, 2, and 3) Alloy Catalysts Prepared by the Nanocapsule Method

    H. Yano, J. M. Song, H. Uchida, and M. Watanabe
    J. Phys. Chem. C, 112, 8372-8380 (2008).

    161

    Performance of Pt-Fe/Mordenite Monolithic Catalysts for Preferential Oxidation of Carbon Monoxide in a Reformate Gas for PEFCs

    N. Maeda, T. Matsushima, H. Uchida, H. Yamashita, and M. Watanabe
    Appl. Catal. A, Gen.,341 , 93-97 (2008).

    160

    Substituents Effect on the Properties of Sulfonated Polyimide Copolymers

    K. Miyatake, T. Yasuda, and M. Watanabe
    J. Polym. Sci. A: Polym. Chem., 46, 4469-4478 (2008).

    159

    In Situ Analysis of Oxygen Partial Pressure at the Cathode Catalyst Layer/Membrane Interface during PEFC Operation

    S. Takaichi, H. Uchida, and M. Watanabe
    Electrochim. Acta, 53, 4699-4705 (2008).

    158

    In Situ and Real-Time Visualisation of Oxygen Distribution in DMFC Using a Porphyrin Dye Compound

    J. Inukai, K. Miyatake, Y. Ishigami, M. Watanabe, T. Hyakutake, H. Nishide, Y. Nagumo, M. Watanabe, and A. Tanaka
    Chem. Commun., 2008, 1750-1752 (2008).

    157

    Synthesis and Properties of Polyimide Ionomers Containing 1H-1,2,4-Triazole Groups

    J. Saito, K. Miyatake, and M. Watanabe
    Macromolecules, 41, 2415-2420 (2008).

    156

    Adsorption/Oxidation of CO on Highly Dispersed Pt Catalyst Studied by Combined Electrochemical and ATR-FTIRAS Methods: Oxidation of CO Adsorbed on Carbon-Supported Pt Catalyst and Unsupported Pt Black

    K. Kunimatsu, T. Sato, H. Uchida, and M. Watanabe
    Langmuir, 24, 3590 - 3601 (2008).

    155

    Direct Visualization of Oxygen Distribution in Operating Fuel Cells

    J. Inukai, K. Miyatake, K. Takada, M. Watanabe, T. Hyakutake, H. Nishide, Y. Nagumo, M. Watanabe, M. Aoki, and H. Takano
    Angew. Chem. Int. Ed., 47, 2792-2795 (2008).

    154

    Increased Oxygen Coverage at Pt-Fe Alloy Cathode for the Enhanced Oxygen Reduction Reaction Studied by EC-XPS

    M. Wakisaka, H. Suzuki, S. Mitsui, H. Uchida, and M. Watanabe
    J. Phys. Chem. C, 112, 2750-2755 (2008).

    153

    Sulfonated Poly(arylene ether sulfone) Ionomers Containing Fluorenyl Groups for Fuel Cell Applications

    B. Bae, K. Miyatake, and M. Watanabe
    J. Membr. Sci, 310, 110-118 (2008).

  2007

  • 152

    Gas Diffusion Electrodes Containing Sulfonated Polyether Ionomers for PEFCs

    A. B. Beleke, K. Miyatake, H. Uchida, and M. Watanabe
    Electrochim. Acta, 53, 1972-1978 (2007).

    151

    Metal Separators Coated with Carbon/Resin Composite Layers for PEFCs

    S. Kitta, H. Uchida, and M. Watanabe
    Electrochim. Acta, 53, 2025-2033 (2007).

    150

    Adsorption/Oxidation of CO on Highly Dispersed Pt Catalyst Studied by Combined Electrochemical and ATR-FTIRAS Methods: Part 1. ATR-FTIRAS Spectra of CO Adsorbed on Highly Dispersed Pt Catalyst on Carbon Black and Carbon Un-Supported Pt Black

    T. Sato, K. Kunimatsu, H. Uchida, and M. Watanabe
    Electrochim. Acta, 53, 1266-1279 (2007).

    149

    Response of Specific Resistance Distribution in Electrolyte Membrane to Load Change at PEFC Operation

    S. Takaichi, H. Uchida, and M. Watanabe
    J. Electrochem. Soc., 154, B1373-B1377 (2007).

    148

    Enhanced Proton Conduction in Polymer Electrolyte Membranes with Acid-Functionalized Polysilsesquioxane

    K. Miyatake, T. Tombe, Y. Chikashige, H. Uchida, and M. Watanabe
    Angew. Chem. Int. Ed., 46, 6646-6649 (2007).

    147

    Distribution Profile of Hydrogen and Oxygen Permeating in Polymer Electrolyte Membrane Measured by Mixed Potential

    S. Takaichi, H. Uchida, and M. Watanabe
    Electrochem. Commun., 9, 1975-1979 (2007).

    146

    Oxygen Reduction Activity of Carbon-Supported Pt-M (M = V, Ni, Cr, Co, and Fe) Alloys Prepared by Nanocapsule Method

    H. Yano, M. Kataoka, H. Yamashita, H. Uchida, and M. Watanabe
    Langmuir, 23, 6438-6445 (2007).

    145

    Effects of Operating Potential and Temperature on Degradation of Electrocatalyst Layer for PEFCs

    T. Yoda, H. Uchida, and M. Watanabe
    Electrochim. Acta, 52, 5997-6005 (2007).

    144

    Distribution Profile of Water and Suppression of Methanol Crossover in Sulfonated Polyimide Electrolyte Membrane for Direct Methanol Fuel Cells

    E. Higuchi, N. Asano, K. Miyatake, H. Uchida, and M. Watanabe
    Electrochim. Acta, 52, 5272-5280 (2007).

    143

    Tuned Polymer Electrolyte Membranes Based on Aromatic Polyethers for Fuel Cell Applications

    K. Miyatake, Y. Chikashige, E. Higuchi, and M. Watanabe
    J. Am. Chem. Soc., 129, 3879-3887 (2007).

    142

    New Metal Separators Coated with Carbon/Resin Composite Layers for PEFCs

    S. Kitta, T. Okumoto, H. Uchida, and M. Watanabe
    Electrochemistry, 75, 213-216 (2007).

    141

    Temperature-Dependence of Direct Methanol Oxidation Rates at Various Platinum Alloy Electrodes

    H. Uchida, K. Takeuchi, N. Wakabayashi, and M. Watanabe
    Electrochemistry, 75, 184-186 (2007).

    140

    Effect of Cross-Linking on Polyimide Ionomer Membranes

    K. Miyatake, N. Asano, T. Tombe, and M. Watanabe
    Electrochemistry, 75, 122-125 (2007).

    139

    Nano-Sized Ni Particles on Hollow Alumina Ball: Catalysts for Hydrogen Production

    M. Watanabe, H. Yamashita, X. Chen, J. Yamanaka, M. Kotobuki, H. Suzuki, and H. Uchida
    Appl. Catal. B, 71, 237-245 (2007).

    138

    Synthesis and Properties of a Polyimide Containing Pendant Sulfophenoxypropoxy Groups

    K. Miyatake, T. Yasuda, M. Hirai, M. Nanasawa, and M. Watanabe
    J. Polym. Sci. A: Polym. Chem., 45, 157-163 (2007).

  2006

  • 137

    Emerging Membrane Materials for High Temperature Polymer Electrolyte Fuel Cells: Durable Hydrocarbon Ionomers

    K. Miyatake and M. Watanabe
    J. Mater. Chem., 16, 4465-4467 (2006).

    136

    Electronic Structures of Pt-Co and Pt-Ru Alloys for CO-Tolerant Anode Catalysts in Polymer Electrolyte Fuel Cells Studied by EC-XPS

    M. Wakisaka, S. Mitsui, Y. Hirose, K. Kawashima, H. Uchida, and M. Watanabe
    J. Phys. Chem. B, 110, 23489-23496 (2006).

    135

    Temperature Dependence of CO-Tolerant Hydrogen Oxidation Reaction Activity at Pt, Pt-Co, and Pt-Ru Electrodes

    H. Uchida, K. Izumi, and M. Watanabe
    J. Phys. Chem. B, 110, 21924-21930 (2006).

    134

    Particle-Size Effect of Nanoscale Platinum Catalysts in Oxygen Reduction Reaction: an Electrochemical and ¹⁹⁵Pt EC-NMR Study

    H. Yano, J. Inukai, H. Uchida, M. Watanabe, P. K. Babu, T. Kobayashi, J. H. Chung, E. Oldfield, and A. Wieckowski
    Phys. Chem. Chem. Phys., 8, 4932-4939 (2006).

    133

    Synthesis of Novel 4,4'-Benzidine Derivatives with Sulfonic Acid Groups

    M. Nanasawa, S. Yamashita, M. Hirai, K. Miyatake, and M. Watanabe
    Org. Prep. Proc. Int., 38, 341-344 (2006).

    132

    Durability of Novel Sulfonated Poly(arylene ether) Membrane in PEFC Operation

    M. Aoki, Y. Chikashige, K. Miyatake, H. Uchida, and M. Watanabe
    Electrochem. Commun., 8, 1412-1416 (2006).

    131

    Decomposition Mechanism of Perfluorosulfonic Acid Electrolyte in Polymer Electrolyte Fuel Cells

    M. Aoki, H. Uchida, and M. Watanabe
    Electrochem. Commun., 8, 1509-1513 (2006).

    130

    Branched and Cross-Linked Proton Conductive Poly(arylene ether sulfone) Ionomers: Synthesis and Properties

    Y. Chikashige, Y. Chikyu, K. Miyatake, and M. Watanabe
    Macromol. Chem. Phys., 207, 1334-1343 (2006).

    129

    Temperature Dependence of Oxygen Reduction Activity at Nafion-Coated Bulk Pt and Pt/Carbon Black Catalysts

    H. Yano, E. Higuchi, H. Uchida, and M. Watanabe
    J. Phys. Chem. B, 110, 16544-16549 (2006).

    128

    Gas Diffusion Electrodes for Polymer Electrolyte Fuel Cell Using Sulfonated Polyimide

    E. Higuchi, K. Okamoto, K. Miyatake, H. Uchida, and M. Watanabe
    Res. Chem. Intermed., 32, 533-542 (2006).

    127

    Electron Tomography of Nafion Ionomer Coated on Pt/Carbon Black in High Utilization Electrode for PEFCs

    H. Uchida, J. M. Song, S. Suzuki, E. Nakazawa, N. Baba, and M. Watanabe
    J. Phys. Chem. B, 110, 13319-13321 (2006).

    126

    High Catalytic Performance of Pt-Fe Alloy Nanoparticles Supported in Mordenite Pores for Preferential CO Oxidation in H₂-Rich Gas

    M. Kotobuki, A. Watanabe, H. Uchida, H. Yamashita, and M. Watanabe
    Appl. Catal. A, 307, 275-283 (2006).

    125

    Preparation of High Catalyst Utilization Electrodes for Polymer Electrolyte Fuel Cells

    J. M. Song, S. Suzuki, H. Uchida, and M. Watanabe
    Langmuir, 22, 6422-6428 (2006).

    124

    Investigation of Direct Methanol Fuel Cell Performance of Sulfonated Polyimide Membrane

    J. M. Song, K. Miyatake, H. Uchida, and M. Watanabe
    Electrochim. Acta, 51, 4497-4504 (2006).

    123

    Durability of Sulfonated Polyimide Membrane Evaluated by Long-Term Polymer Electrolyte Fuell Cell Operation

    M. Aoki, N. Asano, K. Miyatake, H. Uchida, and M. Watanabe
    J. Electrochem. Soc., 153, A1154-1158 (2006).

    122

    Synthesis and Properties of Polyimides Bearing Acid Groups on Long Pendant Aliphatic Chains

    T. Yasuda, Y. Li, K. Miyatake, M. Hirai, M. Nanasawa, and M. Watanabe
    J. Polym. Sci. Part A: Polym. Chem., 44, 3995-4005 (2006).

    121

    Preparation of Highly Dispersed SiO₂ and Pt Particles in Nafion112 for Self-Humidifying Electrolyte Membranes in Fuel Cells

    H. Hagihara, H. Uchida, and M. Watanabe
    Electrochim. Acta, 51, 3979-3985 (2006).

    120

    Polarization Behavior of SDC Cathode with Highly Dispersed Ni Catalysts for Solid Oxide Electrolysis Cells

    N. Osada, H. Uchida, and M. Watanabe
    J. Electrochem. Soc., 153, A816-820 (2006).

    119

    Sulfonated Block Polyimide Copolymers as a Proton-Conductive Membrane

    N. Asano, K. Miyatake, and M. Watanabe
    J. Polym. Sci. Part A: Polym. Chem., 44, 2744-2748 (2006).

    118

    In Situ Infrared Spectroscopic and Electrochemical Study of Hydrogen Electro-Oxidation on Pt Electrode in Sulfuric Acid

    K. Kunimatsu, H. Uchida, M. Osawa, and M. Watanabe
    J. Electroanal. Chem., 587, 299-307 (2006).

    117

    Aliphatic/Aromatic Polymide Ionomers as a Proton Conductive Membrane for Fuel Cell Applications

    N. Asano, M. Aoki, S. Suzuki, K. Miyatake, H. Uchida, and M. Watanabe
    J. Am. Chem. Soc., 128, 1762-1769 (2006).

    116

    Interaction of Samaria-Doped Ceria Anode with Highly Dispersed Ni Catalysts in a Medium-Temperature Solid Oxide Fuel Cell during Long-Term Operation

    S. Suzuki, H. Uchida, and M. Watanabe
    Solid State Ionics, 177, 359-365 (2006).

  2005

  • 115

    Reaction Mechanism of Preferential Oxidation of Carbon Monoxide on Pt, Fe, and Pt.Fe/ Mordenite Catalysts

    M. Kotobuki, A. Watanabe, H. Uchida, H. Yamashita, and M. Watanabe
    J. Catal., 236, 262-269 (2005).

    114

    Novel Aromatic Polymer Electrolyte with Comb-like Structure: Synthesis and Properties

    Y. Li, T. Yasuda, K. Miyatake, and M. Watanabe
    Macromol. Chem. Phys., 206, 2390-2395 (2005).

    113

    Novel Evaluation Method for Degradation Rate of Polymer Electrolytes in Fuel Cells

    M. Aoki, H. Uchida, and M. Watanabe
    Electrochem. Commun., 7, 1434-1438 (2005).

    112

    XAFS Characterization of Pt-Fe/zeolite Catalysts for Preferential Oxidation of CO in Hydrogen Fuel Gases

    M. Kotobuki, T. Shido, M. Tada, H. Uchida, H. Yamashita, Y. Iwasawa, and M. Watanabe
    Catalysis Letters, 103, 263-269 (2005).

    111

    Synthesis and Properties of Polyimide Ionomers Containing Sulfoalkoxy and Fluorenyl Groups

    T. Yasuda, K. Miyatake, M. Hirai, M. Nanasawa and M. Watanabe
    J. Polym. Sci. A: Polym. Chem., 43, 4439-4445 (2005).

    110

    Effect of Loading Level in Platinum-Dispersed Carbon Black Electrocatalysts on Oxygen Reduction Activity Evaluated by Rotating Disk Electrode

    E. Higuchi, H. Uchida, and M. Watanabe
    J. Electroanal. Chem., 583, 69-76 (2005).

    109

    Poly(arylene ether) Ionomers Containing Sulfofluorenyl Groups for Fuel Cell Applications

    Y. Chikashige, Y. Chikyu, K. Miyatake, and M. Watanabe
    Macromolecules, 38, 7121-7126 (2005).

    108

    Application of Sulfonated Polyimide Membranes to Direct Methanol Fuel Cells

    J. M. Song, N. Asano, K. Miyatake, H. Uchida, and M. Watanabe
    Chemistry Letters, 34, 996-997 (2005).

    107

    Development of Pt/ZSM-5 Catalyst with High CO Selectivity for Preferential Oxidation of Carbon Monoxide in a Reformed Gas

    M. Kotobuki, A. Watanabe, H. Uchida, H. Yamashita, and M. Waranabe
    Chemistry Letters, 34, 866-867 (2005).

    106

    Polyimide Electrolyte Membranes Having Fluorenyl and Sulfopropoxy Groups for High Temperature PEFCs

    H. Zhou, K. Miyatake, and M. Watanabe
    Fuel Cells, 5, 296-301 (2005).

    105

    Structures of CO Adlayer on Pt(100) Electrode in HClO₄ Solution Studied by in Situ STM

    M. Wakisaka, T. Ohkanda, T. Yoneyama, H. Uchida, and M. Watanabe
    Chem. Commun., 2005, 2710-2712 (2005).

    104

    Gas Diffusion Electrodes for Polymer Electrolyte Fuel Cells Using Novel Organic/Inorganic Hybrid Electrolytes: Effect of Carbon Black Addition in the Catalyst Layer

    O. Nishikawa, K. Doyama, K. Miyatake, H. Uchida, and M. Watanabe
    Electrochim. Acta, 50, 2719-2723 (2005).

    103

    Synthesis and Properties of Novel Sulfonated Poly(phenylene ether)

    K. Miyatake, H. Zhou, and M. Watanabe
    J. Polym. Sci. A: Polym. Chem., 43, 1741-1744 (2005).

    102

    Temperature Dependence of Oxygen Reduction Activity at Pt-Fe, Pt-Co, and Pt-Ni Alloy Electrodes

    N. Wakabayashi, M. Takeichi, H. Uchida, and M. Watanabe
    J. Phys. Chem. B, 109, 5836-5841 (2005).

    101

    Effect of Wet-Proofing Treatment of Carbon Backing Layer in Gas Diffusion Electrodes on the PEFC Performance

    J. M. Song, H. Uchida, and M. Watanabe
    Electrochemistry, 73, 189-193 (2005).

    100

    Microstructural Analyses of Ceria-Based Anode with Highly Dispersed Ni Electrocatalysts for Medium-Temperature Solid Oxide Fuel Cells

    S. Suzuki, H. Uchida, and M. Watanabe
    Electrochemistry, 73, 128-134 (2005).

    99

    Recent Progress in Proton Conducting Membranes for PEFCs

    K. Miyatake and M. Watanabe
    Electrochemistry, 73, 12-19 (2005).

    98

    Temperature-Dependence of Oxygen Reduction Activity at a Platinum Electrode in an Acidic Electrolyte Solution Investigated with a Channel Flow Double Electrode

    N. Wakabayashi, M. Takeichi, M. Itagaki, H. Uchida, and M. Watanabe
    J. Electroanal. Chem., 574, 339-346 (2005).

  2004

  • 97

    High-Performance Electrode for Steam Electrolysis: Mixed Conducting Ceria-Based Cathode with Highly-Dispersed Ni Electrocatalysts

    H. Uchida, N. Osada, and M. Watanabe
    Electrochem. Solid-State Lett., 7, A500-A502 (2004).

    96

    Characterization of Methoxy Fuels for Direct Oxidation-Type Fuel Cell

    N. Wakabayashi, K. Takeuchi, H. Uchida, and M. Watanabe
    J. Electrochem. Soc., 151, A1636-A1640 (2004).

    95

    Preparation of the Electrode for High Temperature PEFCs Using Novel Polymer Electrolytes Based on Organic/inorganic Nanohybrids

    O. Nishikawa, T. Sugimoto, S. Nomura, K. Doyama, K. Miyatake, H. Uchida, and M. Watanabe
    Electrochim. Acta, 50, 663-672 (2004).

    94

    Hydrolytically Stable Polyimide Ionomer for Fuel Cell Applications

    N. Asano, K. Miyatake, and M. Watanabe
    Chem. Mater., 16, 2841-2843 (2004).

    93

    Proton Conductive Polyimide Electrolytes Containing Trifluoromethyl Groups: Synthesis, Properties, and DMFC Performance

    K. Miyatake, H. Zhou, T. Matsuo, H. Uchida, and M. Watanabe
    Macromolecules, 37, 4961-4966 (2004).

    92

    Proton Conductive Polyimide Electrolytes Containing Fluorenyl Groups: Synthesis, Properties, and Branching Effect

    K. Miyatake, H. Zhou, and M. Watanabe
    Macromolecules, 37, 4956-4960 (2004).

    91

    Gas Diffusion Electrodes for Polymer Electrolyte Fuel Cells Using Borosiloxane Electrolytes

    E. Higuchi, H. Uchida, T. Fujinami, and M. Watanabe
    Solid State Ionics, 171, 45-49 (2004).

    90

    Gas Diffusion Electrodes for Polymer Electrolyte Fuel Cells Using Novel Organic/Inorganic Hybrid Electrolytes

    O. Nishikawa, K. Doyama, K. Miyatake, H. Uchida, and M. Watanabe
    Electrochemistry, 72, 232-237 (2004).

    89

    In-Situ ATR-FTIR Spectroscopic Study of Electro-oxidation of Methanol and Adsorbed CO at Pt-Ru Alloy

    T. Yajima, H. Uchida, and M. Watanabe
    J. Phys. Chem. B, 108, 2654-2659 (2004).

  2003

  • 88

    Novel Sulfonated Poly(arylene ether): A Proton Conductive Polymer Electrolyte Designed for Fuel Cells

    K. Miyatake, Y. Chikashige, and M. Watanabe
    Macromolecules, 36, No. 26, 9691-9693 (2003).

    87

    Synthesis and Properties of Novel Sulfonated Polyimides Containing 1,5-Naphthylene Moieties

    K. Miyatake, N. Asano, and M. Watanabe
    J. Polym. Sci., A.: Polym. Chem., 41, No. 24, 3901-3907 (2003).

    86

    Hydrogen Purification for Fuel Cells: Selective Oxidation of Carbon Monoxide on Pt-Fe/Zeolite Catalysts

    M. Watanabe, H. Uchida, K. Ohkubo, and H. Igarashi
    Applied Catalysis B: Environmental, 46, No. 3, 595-600 (2003).

    85

    High Performance Electrode for Medium-Temperature Solid Oxide Fuel Cells - Mixed Conducting Ceria-Based Anode with Highly-Dispersed Ni Electrocatalysts

    H. Uchida, S. Suzuki, and M. Watanabe
    Electrochem. Solid-State Lett., 6, No. 9, A174-A177 (2003).

    84

    Adsorbed Water for the Electro-oxidation of Methanol at Pt-Ru Alloy

    T. Yajima, N. Wakabayashi, H. Uchida, and M. Watanabe
    Chem. Commun., 2003 , No. 7, 828-829 (2003).

    83

    Highly Proton Conductive Polyimide Electrolytes Containing Fluorenyl Groups

    K. Miyatake, H. Zhou, H. Uchida, and M. Watanabe
    Chem. Commun., 2003, No. 3, 368-369 (2003).

    82

    Self-Humidifying Electrolyte Membranes for Fuel Cells - Preparation of Highly Dispersed TiO₂ Particles in Nafion 112

    H. Uchida, Y. Ueno, H. Hagihara, and M. Watanabe
    J. Electrochem. Soc., 150, No. 1, A57-A62 (2003).

  2002

  • 81

    Temperature-Dependence of Methanol Oxidation Rates at PtRu and Pt Electrodes

    N. Wakabayashi, H. Uchida, and M. Watanabe
    Electrochem. Solid-State Lett., 5, No. 11, E62-E65 (2002).

    80

    Proton Conducting Boroshiloxane Solid Electrolytes and Their Composites with Nafion

    H. Suzuki, Y. Yoshida, M. A. Mehta, M. Watanebe, and T. Fujinami
    Fuel Cells, 2, No. 1, 46-51 (2002).

    79

    Properties of ab-PBI Membranes for Fuel Cells

    H. Uchida, Y. Yamada, N. Asano,M. Watanabe, and M. Litt
    Electrochemistry, 70, No. 12, 943-945 (2002).

    78

    Electrochemical Quartz Crystal Microbalance Analysis of CO-Tolerance at Pt-Fe Alloy Electrodes

    H. Uchida, H. Ozuka, and M. Watanabe
    Electrochim. Acta, 47 , No. 22-23, 3629-3636 (2002).

    77

    Suppression of Methanol Crossover and Distribution of Ohmic Resistance in Pt-Dispersed PEMs under DMFC Operation - Experimental Analyses

    H. Uchida, Y. Mizuno, and M. Watanabe
    J. Electrochem. Soc., 149, No. 6, A682-A687 (2002).

    76

    High Performance Electrode for Medium-Temperature Solid Oxide Fuel Cells - Control of Microstructure of La(Sr)CoO₃ Cathode with Highly Dispersed Pt Electrocatalysts

    H. Uchida, S. Arisaka, and M. Watanabe
    J. Electrochem. Soc., 149, No. 2, A13-A18 (2002).

    75

    In situ STM Imaging of Surface Dissolution and Rearrangement of a PtFe Alloy Electrocatalyst in Electrolyte Solution

    L-J. Wan, T. Moriyama, M. Ito, H. Uchida and M. Watanabe
    Chem. Commun., 2002, No. 1, 58-59 (2002).

  2001

  • 74

    Interaction of Samaria-Doped Ceria Anode with Highly Dispersed Ni Catalysts in a Medium-Temperature Solid Oxide Fuel Cell during Long-Term Operation

    H. Igarashi, H. Uchida and M. Watanabe
    Studies in Surface Science and Catalysis, 132, 953-958 (2001).

    73

    Synthesis and Properties of Poly(arylene ether)s Bearing Sulfonic Acid Groups on Pendant Phenyl Groups

    K. Miyatake and A. S. Hay
    J. Polym. Sci. A: Polym. Chem., 39, 3211-3217 (2001).

    72

    Synthesis and Properties of Novel Sulfonated Arylene Ether / Fluorinated Alkane Copolymers

    K. Miyatake, K. Oyaizu, E. Tsuchida and A. S. Hay
    Macromolecules, 34, 2065-2071 (2001).

    71

    Analyses of the Preferential Oxidation of Carbon Monoxide in Hydrogen-Rich Gas over Noble Metal Catalysts Supported on Mordenite

    H. Igarashi, H. Uchida, and M. Watanabe
    Studies in Surface and Catalysis, 132, 953-958 (2001).

    70

    CO Tolerance of Pt Alloy Electrocatalysts for Polymer Electrolyte Fuel Cells and the CO Detoxification Mechanism

    H. Igarashi, T. Fujino, Y. Zhu, H. Uchida, and M. Watanabe
    Phys. Chem. Chem. Phys., 3, No. 3, 306-314 (2001).

    69

    Attenuated Total Reflection-Fourier Transform Infrared Study of Methanol Oxidation on Sputtered Pt Film Electrode

    Y. Zhu, H. Uchida, T. Yajima, and M. Watanabe,
    Langmuir, 17, No. 1, 146-154 (2001).

  2000

  • 68

    High-Performance Electrode for Medium-Temperature Solid Oxide Fuel Cells - Activation of La(Sr)CoO₃ Cathode with Highly Dispersed Pt Metal Electrocatalysts

    H. Uchida, S. Arisaka, and M. Watanabe,
    Solid State Ionics, 135, No. 1-4, 347-351 (2000).

    67

    In situ STM Obsevation with Atomic Resolution on Platinum Film Electrodes Formed by a Sputtering Method

    S. L. Yau, T. Moriyama, H. Uchida, and M. Watanabe,
    Chem. Commun., 2000, No. 22, 2279-2280 (2000).

    66

    Effect of Polymer Electrolyte Membrane's Property on Fuel Cell Performances

    M. Watanabe, H. Uchida, and H. Igarashi
    Macromolecular Symposia, 156, 223-230 (2000).

    65

    Suppression of Methanol Crossover in Pt-Dispersed Polymer Electrolyte Membrane for Direct Methanol Fuel Cells

    H. Uchida, Y. Mizuno, and M. Watanabe
    Chem. Lett., No. 11, 1268-1269 (2000).

    64

    Mordenite-Supported Noble Metal Catalysts for Selective Oxidation of Carbon Monoxide in a Reformed Gas

    H. Igarashi, H. Uchida, and M. Watanabe
    Chem. Lett., No. 11, 1262-1263 (2000).

    63

    Mechanism of CO Tolerance at Pt-Alloy Anode Catalysts for Polymer Electrolyte Fuel Cells

    M. Watanabe, Y. Zhu, H. Igarashi, and H. Uchida
    Electrochemistry., 68, No. 4, 244-251 (2000).

    62

    Oxidation of CO on Pt-Fe Alloy Electrode Studied by Surface Enhanced Reflection Absorption Spectroscopy

    M. Watanabe, Y. Zhu, and H. Uchida
    J. Phys. Chem. B, 104, No. 8, 1762-1768 (2000).

  1999

  • 61

    Oxidation of Carbon Monoxide at a Platinum Film Electrode Studied by FTIR Spectroscopy with Attenuated Total Reflection Technique

    Y. Zhu, H. Uchida, and M. Watanabe
    Langmuir, 15, No. 25, 8757-8764 (1999).

    60

    Design of CO Tolerant Anode Catalysts for Polymer Electrolyte Fuel Cells

    M. Watanabe, H. Igarashi, andT. Fujino
    Electrochemistry, 67, No. 12, 1194-1196 (1999).

    59

    Enhancement of the Electroreduction of Oxygen on Pt Alloys with Fe, Ni and Co

    T. Toda, H. Igarashi, H. Uchida, and M. Watanabe
    J. Electrochem. Soc., 146, No. 10, 3750-3756 (1999).

    58

    High-Performance Electrode for Medium-Temperature Solid Oxide Fuel Cells - La(Sr)CoO₃ Cathode with Ceria Interlayer on Zirconia Electrolyte

    H. Uchida, S. Arisaka, and M. Watanabe,
    Electrochem. Solid-State Lett., 2, No. 9, 428-430 (1999).

    57

    High-Performance Electrode for Medium-Temperature Solid Oxide Fuel Cells - Control of Microstructure of Ceria-Based Anodes with Highly Dispersed Ruthenium Electrocatalysts

    H. Uchida, T. Osuga, and M. Watanabe,
    J. Electrochem. Soc., 146, No. 5, 1677-1682 (1999).

    56

    Effects of Ionic Conductivity of Zirconia Electrolytes on the Polarization Behavior of Various Cathodes in Solid Oxide Fuel Cells

    H. Uchida, M. Yoshida, and M. Watanabe
    J. Electrochem. Soc., 146, No. 1, 1-7 (1999).

    55

    Enhancement of the Electrocatalytic O₂ Reduction on Pt-Fe Alloys

    T. Toda, H. Igarashi, and M. Watanabe
    J. Electroanal. Chem., 460, No. 1-2, 258-263(1999).

  1998

  • 54

    Role of Electronic Property of Pt and Pt-Alloy on Electrocatalytic Reduction of Oxygen

    T. Toda, H. Igarashi, and M. Watanabe
    J. Electrochem. Soc., 145, No. 12, 4185-4188 (1998).

    53

    Electrochemical Quartz Crystal Microbalance Study of Copper Ad-atoms on Au(111) Electrodes in Solutions of Perchloric and Sulfuric Acid

    H. Uchida, M. Hiei, and M. Watanabe
    J. Electroanal. Chem., 452, No. 1, 97-106 (1998).

    52

    Photocatalytic Degradation of Trichlorobenzene Using Immobilized TiO₂ Films Containing Poly(tetrafluoroethylene) and Platinum Metal Catalyst

    H. Uchida, S. Katoh, and M. Watanabe
    Electrochim. Acta, 43, No. 14-15, 2111-2116 (1998).

    51

    Polymer Electrolyte Membranes Incorporated with Nanometer-Size Particles of Pt and/or Metal-Oxides, Experimental Analysis of Self-Humidification and Suppression of Gas-Crossover in Fuel Cells

    M. Watanabe, H. Uchida, and M. Emori
    J. Phys. Chem. B, 102, No. 17, 3129-3137 (1998).

    50

    Analyses of Self-Humidification and Suppression of Gas-Crossover in Pt-Dispersed Polymer Electrolyte Membranes for Fuel Cells

    M. Watanabe, H. Uchida, and M. Emori
    J. Electrochem. Soc., 145, No. 4, 1137-1141 (1998).

    49

    High Performance Electrode for Medium Temperature Solid Oxide Fuel Cells - Effect of Composition and Microstructures on Performance of Ceria-Based Anodes

    H. Uchida, H. Suzuki, and M. Watanabe,
    J. Electrochem. Soc., 145, No. 2, 615-620 (1998).

  1997

  • 48

    Removal of Carbon Monoxide from Hydrogen-rich Fuels by Selective Oxidation over Platinum Catalyst Supported on Zeolite

    H. Igarashi, H. Uchida, M. Suzuki, Y. Sasaki, and M. Watanabe,
    Appl. Catalysis A, 159, 159-169 (1997).

    47

    Evaluation of the Performance Degradation at Phosphoric Acid Fuel Cells, Dealloying Process of Pt-Co-Ni Electrocatalysts

    N. Nakajima, H. Miyoshi, K. Nishizaki, T. Kitai, H. Uchida, and M. Watanabe,
    Denki Kagaku, 65, No. 10, 876-877 (1997).

    46

    Electrochemical Quartz Crystal Microbalance Study of Halide Adsorption and Concomitant Change of Surface Excess of Water on Highly Ordered Au(111)

    H-W. Lei, H. Uchida, and M. Watanabe,
    Langmuir, 13, No. 13, 3523-3528 (1997).

    45

    Effects of Ionic Conductivity of Zirconia Electrolytes on the Polarization Behavior of Ceria-Based Anodes in Solid Oxide Fuel Cells

    M. Watanabe, H. Uchida, and M. Yoshida,
    J. Electrochem. Soc., 144, No. 5, 1739-1743 (1997).

    44

    Electrochemical Quartz Crystal Microbalance Study of Copper Ad-atoms on Gold Electrodes. Part II. Further Discussion on the Specific Adsorption of Anions from Solutions of Perchloric and Sulfuric Acid

    H. Uchida, N. Ikeda, and M. Watanabe,
    J. Electroanal. Chem., 424, 5-12 (1997).

    43

    Direct Methanol Oxidation on Platinum Electrodes with Ruthenium Adatoms in Hot Phosphoric Acid

    M. Watanabe, Y. Genjima, and K. Turumi
    J. Electrochem. Soc., 144, No. 2, 423-428(1997).

  1996

  • 42

    Self-Humidifying Polymer Electrolyte Membranes for Fuel Cells

    M. Watanabe, H. Uchida, Y. Seki, M. Emori, and P. Stonehart
    J. Electrochem. Soc., 143, No. 12, 3847-3852 (1996).

    41

    Electrochemical Quartz Crystal Microbalance Study of Adsorption of Iodide Anion on Highly Ordered Au(111)

    H-W. Lei, H. Uchida, and M. Watanabe
    J. Electroanal. Chem., 413, 131-136 (1996).

    40

    An Advanced Gas-Diffusion Electrode for High Performance Phosphoric Acid Fuel Cells

    N. Hara, K. Tsurumi, and M. Watanabe
    J. Electroanal. Chem., 413, 81-88 (1996).

    39

    High Performance Electrode for Medium Temperature Operating Solid Oxide Fuel Cells. Activation of La(Sr)MnO₃Cathode with Highly Dispersed Pt Microcrystals

    H. Uchida, A. Tsuno, and M. Watanabe
    Denki Kagaku, 64, No. 6, 686-687 (1996).

    38

    Electrochemical Oxidation of Methanol on Platinum Electrodes with Ruthenium Ad-atoms in Hot Phosphoric Acid

    M. Watanabe, Y. Genjima, and K. Turumi
    Denki Kagaku, 64, No. 6, 462-463 (1996).

    37

    Electrochemical Evaluation of Fill-level with Electrolyte in Gas Diffusion Electrodes at Phosphoric Acid Fuel Cells

    M. Watanabe, H. Uchida, H. Hiratsuka, T. Kitai, K. Nishizaki, N. Nakajima, and H. Miyoshi
    Denki Kagaku, 64, No. 6, 460-461 (1996).

    36

    High-Performance Electrode for Medium-Temperature Operating Solid Oxide Fuel Cells. Polarization Property of Ceria-Based Anode with Highly Dispersed Ruthenium Catalysts in (H₂+CO₂+H₂O)Gas

    H. Uchida, N. Mochizuki, and M. Watanabe
    J. Electrochem. Soc., 143, No. 5, 1700-1704(1996).

    35

    Experimental Analysis of Water Behavior in Nafion Electrolyte Under Fuel Cell Operation

    M. Watanabe, H. Igarashi, H. Uchida, F. Hirasawa
    J. Electroanal. Chem.,399, 239-241 (1996).

  1995

  • 34

    Hydrogen Electro-oxidation on Platinum Catalysts in the Presence of Trace Carbon Monoxide

    H. Igarashi, T. Fujino, and M. Watanabe
    J. Electroanal. Chem., 391, 119-123 (1995).

    33

    High Efficiency Electrochemical Reduction of Carbon Dioxide under High Pressure on a Gas Diffusion Electrode Containing Pt Catalysts

    K. Hara, A. Kudo, T. Sakata, and M. Watanabe
    J. Electrochem. Soc., 142, No. 4, L57-L59(1995).

    32

    In-situ Kinetic Studies on Direct Fluorination of Thin Polyethylene Films with QCM

    N. Hara, H. Fukumoto, and M. Watanabe
    Bull. Chem. Soc. Jpn., 68, No. 4, 1232-1238(1995).

    31

    Photocatalytic Decomposition of Trichlorobenzene Using TiO₂ Supported on Nickel-Poly(tetrafluoroethylene) Composite Plate

    H. Uchida, S. Katoh, and M. Watanabe
    Chemistry Letters, No. 4, 261-262(1995).

    30

    Electrochemical Quartz Crystal Microbalance Study of Silver Ad-atoms on Highly Ordered Au(111) Electrodes in Sulfuric Acid

    H. Uchida, M. Miura, and M. Watanabe
    J. Electroanal. Chem., 386, No. 1-2, 261-265 (1995).

    29

    Effects of Ionic Conductivities of Zirconia Electrolytes on Polarization Properties of Platinum Anodes in Solid Oxide Fuel Cells

    H. Uchida, M. Yoshida, and M. Watanabe
    J. Phys. Chem., 99, No. 10, 3282-3287(1995).

    28

    An Experimental Prediction of the Preparation Condition of Nafion-Coated Catalyst Layers for PEFCs

    M. Watanabe, H. Igarashi, and K. Yoshioka
    Electrochim. Acta, 40, No. 3, 329-334 (1995).

    27

    Electrochemical Quartz Crystal Microbalance Study of Copper Ad-atoms on Highly Ordered Au(111) Electrodes in Sulfuric Acid

    M. Watanabe, H. Uchida, M. Miura, and N. Ikeda
    J. Electroanal. Chem., 384, 191-195 (1995).

    26

    Electrochemical Quartz Crystal Microbalance Study of Copper Ad-atoms on Gold and Platinum Electrodes. Part I. Adsorption of Anions in Sulfuric Acid

    M. Watanabe, H. Uchida, and N. Ikeda
    J. Electroanal. Chem., 380, 255-260 (1995).

    25

    Pt Catalyst Supported on Zeolite for Selective Oxidation of CO in Reformed Gases

    M. Watanabe, H. Uchida, H. Igarashi, and M. Suzuki
    Chemistry Letters, No. 1, 21-22 (1995).

  1994

  • 24

    Activity and Stability of Ordered and Disordered Co-Pt Alloys for Phosphoric Acid Fuel Cell

    M. Watanabe, K. Tsurumi, T. Mizukami, T, Nakamura, and P. Stonehart
    J. Electrochem. Soc., 141, No. 10, 2659-2668 (1994).

    23

    Design of Electrocatalyst for CO₂ Reduction. V. Effect of Microcrystalline Structures of Cu-Sn and Cu-Zn Alloys on the Electrocatalysis of CO₂ Reduction

    A. Katoh, H. Uchida, M. Shibata, and M. Watanabe
    J. Electrochem. Soc., 141, No. 8, 2054-2058 (1994).

    22

    An Effect of Proton Conductivity in Electrolyte Membranes on Cathode Performances at Polymer Electrolyte Fuel Cells

    M. Watanabe, K. Sakairi, and M. Inoue
    J. Electroanal. Chem., 375, 415-418 (1994).

    21

    Noble Metal Catalysts Highly-dispersed on Sm-Doped Ceria For the Application to Internal Reforming Solid Oxide Fuel Cells Operated at Medium Temperature

    M. J. Saeki, H. Uchida, and M. Watanabe
    Catalysis Letters, 26, 149-157 (1994).

    20

    High Performance Catalyzed-reaction Layer for Medium Temperature Operating Solid Oxide Fuel Cells

    M. Watanabe, H. Uchida, M. Shibata, N. Mochizuki, and K. Amikura
    J. Electrochem. Soc., 141, No. 2, 342-346 (1994).

  1993

  • 19

    Management of the Water Content in Polymer Electrolyte Membranes with Porous Fiber Wicks

    M. Watanabe, Y. Satoh, and C. Shimura
    J. Electrochem. Soc., 140, No. 11, 3190-3193 (1993).

    18

    Effect of the Microcrystallite Structures of Cu-Sn and Cu-Zn Alloys on Electroreduction of CO₂

    A. Katoh, M. Shibata, and M. Watanabe
    Denki Kagaku, 61, No. 7, 805-806 (1993).

    17

    Selective Oxidation of the Aldehyde Functional Group in the Glycolaldehyde Molecule at Pt Electrodes Modified by Sb Ad-atoms

    M. Shibata, N. Furuya, and M. Watanabe
    J. Electroanal. Chem., 344, 389-393 (1993).

  1991

  • 16

    Reduction of Horse Heart Ferricytochrome c at Platinum and Gold Electrodes Modified by Various Ad-atoms

    M. Shibata, K. Nakamura, N. Furuya, and M. Watanabe
    J. Electroanal. Chem., 314, 179-190 (1991).

    15

    Design of Alloy Electrocatalysts for CO₂ Reduction III. The Selective and Reversible Reduction of CO₂ at Cu Alloy Electrodes

    M. Watanabe, M. Shibata, A. Katoh, M. Azuma, and T. Sakata
    J. Electrochem. Soc., 138, No.11, 3382-3389 (1991).

    14

    A New Wet-Proof Technique of Gas-Diffusion Electrodes

    M. Watanabe, C. Shimura, K. Tsurumi, and N. Hara
    Chemistry Letters, 1113-1116 (1991).

    13

    Design of Alloy Electrocatalysts for CO₂ Reduction - Improved Energy Efficiency, Selectivity, and Raccoon Rate for the CO₂ Electroreduction on Cu Alloy Electrodes

    M. Watanabe, M. Shibata , A. Katoh, T. Sakata, and M. Azuma
    J. Electroanal. Chem., 305, 319-328 (1991).

    12

    Design of Alloy Electrocatalysts for CO₂ Reduction (I) The Selective and Reversible Reduction of CO₂ at Cu-Ni Alloy Electrodes

    M. Watanabe, M. Shibata, A. Katoh, M. Azuma, and T. Sakata
    Denki Kagaku, 59, 508-516 (1991).

  1990

  • 11

    Electrochemical Reduction of Carbon Dioxide to Higher Hydrocarbons in a KHCO₃Aqueous Solution

    M. Azuma, K. Hashimoto, M. Watanabe, and T. Sakata
    J. Electroanal. Chem., 294, 299-303 (1990).

    10

    Electrochemical Reduction of Carbon Dioxide on Various Metal Electrodes in Low-Temperature Aqueous KHCO₃ Media

    M. Azuma, K. Hashimoto, M. Hiramoto, M. Watanabe, and T. Sakata
    J. Electrochem. Soc., 137, 1772-1778 (1990).

    9

    The Use of Thin Films of Sulfonated Fluoro-polymers for Improvements in the Activity and Durability of Pt Electrocatalysts for Methanol Electrooxidation

    M. Watanabe, T. Takahashi, and H. Kita
    J. Electroanal. Chem., 284, 511-515 (1990).

  1989

  • 8

    High Platinum Electrocatalyst Utilizations for Direct Methanol Oxidation

    M. Watanabe, S. Saegusa, and P. Stonehart
    J. Electroanal. Chem., 271, 213-220 (1989).

    7

    Influence of the Carbon Backing Paper on Oxygen Reduction Parameters in Phosphoric Acid Fuel Cell Electrodes

    M. Watanabe, P. Stonehart, M. Inoue, H. Fukui, and K. Miwa
    Chemistry Letters, 1441-1444 (1989).

    6

    Electrocatalysis by Ad-atoms Part XXV. Electrocatalytic Effects on the Elementary Steps in Ethanol Oxidation by Non-oxygen-adsorbing Ad-atoms

    M. Shibata, N. Furuya, and M. Watanabe
    J. Electroanal. Chem., 267, 163-170 (1989).

    5

    Control of Micropore Structures of Porous Oxide Plaques for Molten Carbonate Fuel Cells by a Slurry Sintering Method (II)

    M. Watanabe, M. Takao, and Y. Namikawa
    Denki Kagaku, 57, 898-901 (1989).

    4

    Controlling of Micropore Distribution of Porous Gas-Diffusion Electrodes for a Molten Carbonate Fuel Cell by a Slurry Sintering Method (I)

    M. Watanabe, M. Takao, and Y. Namikawa
    Denki Kagaku, 57, 586-590 (1989).

    3

    Electrocatalysis by Ad-atoms Part XXIV. Effect of Arrangement of Bi Ad-atoms on Formic Acid Oxidation

    M. Shibata, N. Furuya, M. Watanabe, and S. Motoo
    J. Electroanal. Chem., 263, 97-108 (1989).

    2

    The Influence of Platinum Crystallite Size on the Electroreduction of Oxygen

    M. Watanabe, H. Sei, and P. Stonehart
    J. Electroanal. Chem., 261, 375-387 (1989).

    1

    Carbon Dioxide Reduction at Low Temperature on Various Metal Electrodes

    M. Azuma, K. Hashimoto, M. Hiramoto, M. Watanabe, and T. Sakata
    J. Electroanal. Chem., 260, 441-445 (1989).