Investigation of carbon materials as supports for metalloporphyrins used for cathode catalyst in fuel cells

Makoto Yuasa, Kenichi Oyaizu, Hidenori Murata, Mizuki Kitao, Kenji Fujita

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

meso-Substituted cobalt and Interface Science, Tokyo University of Science (Kagurazaka, Shinjuku-ku, Tokyo 162-8610, Japan) phyrin and various carbon materials. These electrocatalysts gave rise to electroreduction of O2 at a remarkably positive potential (Ep= 0.44 V versus saturated calomel electrode (SCE) and showed a high selectivity for the four-electron reduction (n=3.9). The catalyst heat-treated at 600°C showed higher potential (Ep=0.44 V vs. SCE). Electrochemical study and X-ray photo spectroscopy (XPS) analysis revealed that the adsorbed amount of cobalt-porphyrin molecules caused highly effective catalysts for electroreduction of O2.

Original languageEnglish
Pages (from-to)607-612
Number of pages6
JournalKOBUNSHI RONBUNSHU
Volume63
Issue number9
DOIs
Publication statusPublished - 2006 Sep
Externally publishedYes

Keywords

  • Electrocatalyst
  • Heat-treatment
  • Oxygen reduction
  • Porphyrin complex

ASJC Scopus subject areas

  • Chemical Engineering (miscellaneous)
  • Materials Science (miscellaneous)
  • Environmental Science(all)
  • Polymers and Plastics

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