Preparation of a tetraphenylporphyrinatocobalt(II)-poly(3,4-azopyridylene) complex and its oxygen enrichment effect at an oxygen electrode

Baoqing Shentu, Kenichi Oyaizu, Hiroyuki Nishide*

*この研究の対応する著者

研究成果: Article査読

13 被引用数 (Scopus)

抄録

The reversible oxygen-binding properties of tetraphenylporphyrinatocobalt(II) (CoTPP) complexed with poly(3,4-azopyridylene) (PAP) were established. The CoTPP complexes functioned as oxygen carriers at the surface of a cathode to enhance the current for the reduction of oxygen. PAP was synthesized by the oxidative polymerization of 3,4-diaminopyridine in a DMF solution at 25 °C using a Cu/pyridine catalyst. The combination of the CoTPP complex and the conventional Pt/C catalyst resulted in a significant increase in the steady-state current for the four-electron reduction of O 2, particularly at small overpotentials where typical fuel cells operate, based on the facilitated transport of O2 from the atmosphere to the catalyst at the electrode surface.

本文言語English
ページ(範囲)3308-3311
ページ数4
ジャーナルJournal of Materials Chemistry
14
22
DOI
出版ステータスPublished - 2004 11 21
外部発表はい

ASJC Scopus subject areas

  • 化学 (全般)
  • 材料化学

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