Cobaltporphyrin-adsorbed carbon black: Highly efficient electrocatalysts for oxygen reduction

Makoto Yuasa, Aritomo Yamaguchi, Kenichi Oyaizu, Yosuke Fujito, Mizuki Kitao, Tsuyoshi Sato

研究成果: Article査読

16 被引用数 (Scopus)

抄録

meso-Substituted cobalt porphyrins adsorbed on carbon black were prepared as catalysts for the electroreduction of O2. The catalyst, which was prepared by using a homogenizer in mixing cobalt tetraethylporphyrin and carbon black, gave rise to electroreduction of O2 at a remarkably positive potential (Ep = 0.45 V versus saturated calomel electrode (SCE) and showed a high selectively for the four-electron reduction (n=3.8). Electrochemical study and extended X-ray absorption fine structure (EXAFS) analysis revealed that the adsorbed face-to-face dimeric aggregates of cobalt porphyrin molecules were highly efficient catalysts for electroreduction of O2.

本文言語English
ページ(範囲)702-705
ページ数4
ジャーナルPolymers for Advanced Technologies
16
9
DOI
出版ステータスPublished - 2005 9 1
外部発表はい

ASJC Scopus subject areas

  • Polymers and Plastics

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