Modifying carbon particles with polypyrrole for adsorption of cobalt ions as electrocatatytic site for oxygen reduction

Makoto Yuasa, Aritomo Yamaguchi, Hisayuki Itsuki, Ken Tanaka, Masakuni Yamamoto, Kenichi Oyaizu

Research output: Contribution to journalArticle

214 Citations (Scopus)

Abstract

The modification of a carbon nanoparticle modified with a cobalt-adsorbed polypyrrole (PPy) film for the oxygen reduction is described. Metal complexes with macrocyclic ligands such as porphyrins and phthalocyanines that contain four nitrogen donors adsorbed on carbon and heat-treated are alternates to the conventional carbon-supported platinum catalyst. It was found that the heat treatment of the catalyst not only shifted the half-wave potential to a positive side but also doubled the plateau current. It was also found that the catalyst showed high stability against degradation after use for several hours.

Original languageEnglish
Pages (from-to)4278-4281
Number of pages4
JournalChemistry of Materials
Volume17
Issue number17
DOIs
Publication statusPublished - 2005 Aug 23
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Chemistry

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