Catalytic activity of carbon-supported iridium oxide for oxygen reduction reaction as a Pt-free catalyst in polymer electrolyte fuel cell

C. H. Chang, T. S. Yuen, Y. Nagao, H. Yugami

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)

Abstract

Iridium oxide supported on Vulcan XC-72 carbon black (IrO2/C) as a cathode catalyst for polymer electrolyte fuel cell (PEFC) has been characterized by transmission electron microscopy (TEM) and X-ray diffraction (XRD) measurement. The IrO2 particles were 8-160 nm in diameter. The oxygen electroreduction activity was studied by cyclic voltammetry (CV). It was found that IrO2/C had high oxygen reduction reaction (ORR) activity. The performance of the membrane electrode assemble (MEA) was also tested in a single PEFC and showed that IrO2/C catalyst would be potential candidates for use as cathode catalyst in PEFC.

Original languageEnglish
Pages (from-to)49-51
Number of pages3
JournalSolid State Ionics
Volume197
Issue number1
DOIs
Publication statusPublished - 2011 Aug 25

Keywords

  • Carbon-supported iridium oxide
  • Membrane electrode assemble
  • Oxygen reduction reaction
  • Polymer electrolyte fuel cell

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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