Cobalt tetramethoxyphenyl porphyrin-emission Mossbauer spectroscopy and O2 reduction electrochemical studies

Daniel Alberto Scherson*, S. L. Gupta, C. Fierro, E. B. Yeager, M. E. Kordesch, J. Eldridge, R. W. Hoffman, J. Blue

*この研究の対応する著者

研究成果: Article査読

139 被引用数 (Scopus)

抄録

Cobalt tetramethoxyphenyl porphyrin (Co-TMPP) on a high area carbon support after thermal treatment at 450-900°C has been found to be an effective catalyst for O2 reduction in alkaline electrolytes. The effect of the heat treatment at 850°C on this catalyst has been examine with emission Mössbauer spectroscopy using Co-57 enriched Co-TMPP. The spectra indicate the presence of cobaltous oxides with no evidence of Co-N4 centers or any other form of cobalt. The metal-free complex H2TMPP, given similar thermal treatment on a mineral-free carbon support does not show catalytic activity beyond that of the carbon support, thus confirming the importance of the transition metal to the catalysis.

本文言語English
ページ(範囲)1205-1209
ページ数5
ジャーナルElectrochimica Acta
28
9
DOI
出版ステータスPublished - 1983 1 1
外部発表はい

ASJC Scopus subject areas

  • 化学工学(全般)
  • 電気化学

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