Development of the overpotential simulator for polymer electrolyte fuel cells and application for optimization of cathode structure

Tatsuya Hattori, Ai Suzuki, Riadh Sahnoun, Michihisa Koyama, Hideyuki Tsuboi, Nozomu Hatakeyama, Akira Endou, Hiromitsu Takaba, Momoji Kubo, Carlos A. Del Carpio, Akira Miyamoto

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

We developed a novel computational method to investigate the influences of the microstructure of the polymer electrolyte fuel cell cathode catalyst layer on the overpotential characteristic toward its optimization. Three-dimensional cathode catalyst layer models were constructed by applying three-dimensional porous structure simulator and developed simulator was used to study the overpotential characteristics. Our results showed that the overpotential decreased as decrease of the standard deviation of the ionomer thickness distribution due to the increase of number of active sites.

Original languageEnglish
Pages (from-to)7929-7932
Number of pages4
JournalApplied Surface Science
Volume254
Issue number23
DOIs
Publication statusPublished - 2008 Sep 30

Keywords

  • Cathode
  • Microstructure
  • Optimization
  • Overpotential
  • Polymer electrolyte fuel cell

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Physics and Astronomy(all)
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

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