Simultaneous visualization of oxygen partial pressure, current density, and water droplets in serpentine fuel cell during power generation for understanding reaction distributions

Kazuhiro Takanohashi, Takeo Suga, Makoto Uchida, Toshihide Ueda, Yuzo Nagumo, Junji Inukai*, Hiroyuki Nishide, Masahiro Watanabe

*この研究の対応する著者

研究成果: Article査読

15 被引用数 (Scopus)

抄録

Understanding the reaction distributions inside a polymer electrolyte fuel cell (PEFC) is essential for the higher performance and durability. We have developed a new see-through cell and visualized the distributions of oxygen partial pressure and current density inside a running PEFC at the temperature of 40 and 80 °C and the relative humidity of 53%. The oxygen utilization was changed from 0% to 80% by changing the current density. At higher oxygen utilizations, the current density was higher and therefore the water generation. Generated water droplets in the flow channel were also visualized, allowing for the simultaneous visualization of the distribution of the oxygen partial pressure, current density, and water droplets. By combining the observations of all three parameters, the reactions inside a membrane-electrode assembly were discussed.

本文言語English
ページ(範囲)135-141
ページ数7
ジャーナルJournal of Power Sources
343
DOI
出版ステータスPublished - 2017

ASJC Scopus subject areas

  • 再生可能エネルギー、持続可能性、環境
  • エネルギー工学および電力技術
  • 物理化学および理論化学
  • 電子工学および電気工学

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