Catalytic oxygen reduction activities of cobalt porphyrin substituted polythiophene membrane

Takuya Imai, Hidenori Murata, Kenichi Oyaizu, Makoto Yuasa

Research output: Contribution to conferencePaper

Abstract

Finding nonnoble metal catalysts for electrodes in fuel cells is an important subject of recent study. In this study, a new polythiophene derivative bearing the porphyrin, cobalt 5-(3-thienyl)-10,15,20-triethyl-21H, 23H-porphine, was synthesized by electropolymerization onto the surface of carbon particles. The modified carbon particles were suspended in an alcoholic solution of Nafion, and a pseudo-MEA was prepared on an electrode by casting the solution. The catalyst showed highly efficient catalytic activity for the selective four electron reduction of oxygen at E1/2 = 0.57 V vs SCE by rotating ring-disk voltammetry.

Original languageEnglish
Number of pages1
Publication statusPublished - 2006 Dec 1
Event55th Society of Polymer Science Japan Symposium on Macromolecules - Toyama, Japan
Duration: 2006 Sep 202006 Sep 22

Other

Other55th Society of Polymer Science Japan Symposium on Macromolecules
CountryJapan
CityToyama
Period06/9/2006/9/22

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Keywords

  • Cathode catalyst
  • Electropolymerization
  • Oxygen reduction
  • Porphyrin complex

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Imai, T., Murata, H., Oyaizu, K., & Yuasa, M. (2006). Catalytic oxygen reduction activities of cobalt porphyrin substituted polythiophene membrane. Paper presented at 55th Society of Polymer Science Japan Symposium on Macromolecules, Toyama, Japan.