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

doi:10.1149/2.018204esl

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

^*Corresponding author for this work

School of Advanced Science and Engineering

Research output: Contribution to journal › Article › peer-review

11 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 language	English
Pages (from-to)	B51-B53
Journal	Electrochemical and Solid-State Letters
Volume	15
Issue number	4
DOIs	https://doi.org/10.1149/2.018204esl
Publication status	Published - 2012 Feb 27

ASJC Scopus subject areas

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

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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.",

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

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T1 - Real-time visualization of CO 2 generated by corrosion of the carbon support in a PEFC cathode

AU - Ishigami, Yuta

AU - Maeda, Itsumi

AU - Takada, Kenji

AU - Hyakutake, Tsuyoshi

AU - Suga, Takeo

AU - Inukai, Junji

AU - Uchida, Makoto

AU - Nagumo, Yuzo

AU - Nishide, Hiroyuki

AU - Watanabe, Masahiro

PY - 2012/2/27

Y1 - 2012/2/27

N2 - 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.

AB - 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.

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

Abstract

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