Real-time visualization of CO 2 generated by corrosion of the carbon support in a PEFC cathode

Yuta Ishigami*, Itsumi Maeda, Kenji Takada, Tsuyoshi Hyakutake, Takeo Suga, Junji Inukai, Makoto Uchida, Yuzo Nagumo, Hiroyuki Nishide, Masahiro Watanabe

*この研究の対応する著者

研究成果: Article査読

9 被引用数 (Scopus)

抄録

Start-up and shut-down cycling in PECFs causes severe degradation, because the carbon supports at the cathode catalyst layers are corroded due to the instantaneous reaction with H 2O. We developed a new CO 2 visualization system using a CO 2-sensitive dye for detecting the generation of CO 2 during the corrosion processes in real time and with spatial resolution. The corrosion occurring during the shut-down process continued longer near the inlet and produced a more serious effect than during the start-up process, near the outlet. This new CO 2 visualization technique should help to minimize the corrosion of carbon supports in all types of PEFCs.

本文言語English
ページ(範囲)B51-B53
ジャーナルElectrochemical and Solid-State Letters
15
4
DOI
出版ステータスPublished - 2012 2 27

ASJC Scopus subject areas

  • 化学工学(全般)
  • 材料科学(全般)
  • 物理化学および理論化学
  • 電気化学
  • 電子工学および電気工学

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