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

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9 Citations (Scopus)

Abstract

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.

Original languageEnglish
JournalElectrochemical and Solid-State Letters
Volume15
Issue number4
DOIs
Publication statusPublished - 2012

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ASJC Scopus subject areas

  • Electrochemistry
  • Electrical and Electronic Engineering
  • Materials Science(all)
  • Chemical Engineering(all)
  • Physical and Theoretical Chemistry

Cite this

Ishigami, Y., Maeda, I., Takada, K., Hyakutake, T., Suga, T., Inukai, J., Uchida, M., Nagumo, Y., Nishide, H., & Watanabe, M. (2012). Real-time visualization of CO 2 generated by corrosion of the carbon support in a PEFC cathode. Electrochemical and Solid-State Letters, 15(4). https://doi.org/10.1149/2.018204esl