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

Yuta Ishigami, Wihatmoko Waskitoaji, Masakazu Yoneda, Kenji Takada, Tsuyoshi Hyakutake, Takeo Suga, Makoto Uchida, Yuzo Nagumo, Junji Inukai, Hiroyuki Nishide, Masahiro Watanabe

    Research output: Contribution to journalArticle

    9 Citations (Scopus)

    Abstract

    Visualization of the oxygen partial pressures was carried out at the surface of a gas diffusion layer (GDL) for the first time together with the upper part of the gas-flow channel of the cathode of a running polymer electrolyte fuel cell (PEFC) using two different oxygen-sensitive luminescent dye films. The visualized distributions of the oxygen partial pressures at the GDL and the upper gas-flow channel during the PEFC operation were very different in a conventional test cell. The change in the distribution of the oxygen partial pressures was observed by changing the oxygen utilization, which should be connected with the reactive locations in the membrane-electrode assembly (MEA). A numerical calculation was carried out to understand the distributions of water and current density inside the MEA. The water distribution inside the MEA was confirmed to strongly affect the distributions of the current density and the oxygen /partial pressure.

    Original languageEnglish
    Pages (from-to)556-564
    Number of pages9
    JournalJournal of Power Sources
    Volume269
    DOIs
    Publication statusPublished - 2014 Dec 10

    Fingerprint

    gaseous diffusion
    Diffusion in gases
    Partial pressure
    Electrolytes
    fuel cells
    Power generation
    gas flow
    partial pressure
    Flow of gases
    Fuel cells
    surface layers
    Polymers
    Visualization
    electrolytes
    Oxygen
    Computer simulation
    polymers
    oxygen
    simulation
    assembly

    Keywords

    • Gas diffusion layer
    • Gas-flow channel
    • Numerical modeling
    • Oxygen reduction reaction
    • Polymer electrolyte fuel cell
    • Visualization of oxygen partial pressure

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering
    • Energy Engineering and Power Technology
    • Renewable Energy, Sustainability and the Environment
    • Physical and Theoretical Chemistry

    Cite this

    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. / Ishigami, Yuta; Waskitoaji, Wihatmoko; Yoneda, Masakazu; Takada, Kenji; Hyakutake, Tsuyoshi; Suga, Takeo; Uchida, Makoto; Nagumo, Yuzo; Inukai, Junji; Nishide, Hiroyuki; Watanabe, Masahiro.

    In: Journal of Power Sources, Vol. 269, 10.12.2014, p. 556-564.

    Research output: Contribution to journalArticle

    Ishigami, Yuta ; Waskitoaji, Wihatmoko ; Yoneda, Masakazu ; Takada, Kenji ; Hyakutake, Tsuyoshi ; Suga, Takeo ; Uchida, Makoto ; Nagumo, Yuzo ; Inukai, Junji ; Nishide, Hiroyuki ; Watanabe, Masahiro. / 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. In: Journal of Power Sources. 2014 ; Vol. 269. pp. 556-564.
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    AU - Takada, Kenji

    AU - Hyakutake, Tsuyoshi

    AU - Suga, Takeo

    AU - Uchida, Makoto

    AU - Nagumo, Yuzo

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