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

Research output: Contribution to journalArticle

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

Fingerprint

Carbon Monoxide
corrosion
Cathodes
Carbon
Visualization
cathodes
Corrosion
carbon
outlets
Catalyst supports
Dyes
spatial resolution
dyes
degradation
catalysts
Degradation
cycles
Catalysts
Coloring Agents
causes

ASJC Scopus subject areas

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

Cite this

Real-time visualization of CO 2 generated by corrosion of the carbon support in a PEFC cathode. / Ishigami, Yuta; Maeda, Itsumi; Takada, Kenji; Hyakutake, Tsuyoshi; Suga, Takeo; Inukai, Junji; Uchida, Makoto; Nagumo, Yuzo; Nishide, Hiroyuki; Watanabe, Masahiro.

In: Electrochemical and Solid-State Letters, Vol. 15, No. 4, 2012.

Research output: Contribution to journalArticle

Ishigami, Yuta ; Maeda, Itsumi ; Takada, Kenji ; Hyakutake, Tsuyoshi ; Suga, Takeo ; Inukai, Junji ; Uchida, Makoto ; Nagumo, Yuzo ; Nishide, Hiroyuki ; Watanabe, Masahiro. / Real-time visualization of CO 2 generated by corrosion of the carbon support in a PEFC cathode. In: Electrochemical and Solid-State Letters. 2012 ; Vol. 15, No. 4.
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