Gas diffusion electrodes for polymer electrolyte fuel cell using sulfonated polyimide

Eiji Higuchi, Kenichi Okamoto, Kenji Miyatake, Hiroyuki Uchida, Masahiro Watanabe

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

Gas diffusion electrodes for high temperature polymer electrolyte fuel cells (PEFCs) have been prepared by using a novel proton conductive sulfonated polyimide (SPI) electrolyte. The catalyst layer was composed of Pt-loaded carbon black (Pt-CB) and SPI ionomer. The polarization properties and the microstructure of the catalyst layer were investigated as a function of the SPI/CB weight ratio. The anodic polarization was found to be negligibly small for all the compositions examined. The highest cathode performance was obtained at SPI/CB = 0.5 (by weight), where the best balance of high catalyst utilization and oxygen gas diffusion rate through the ionomer was obtained.

Original languageEnglish
Pages (from-to)533-542
Number of pages10
JournalResearch on Chemical Intermediates
Volume32
Issue number5
DOIs
Publication statusPublished - 2006
Externally publishedYes

Keywords

  • Gas diffusion electrode
  • Polymer electrolyte fuel cell
  • Sulfonated polyimide electrolyte

ASJC Scopus subject areas

  • Chemistry(all)

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