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Journal of Applied Electrochemistry

, Volume 13, Issue 3, pp 355–363 | Cite as

X-ray photoelectron spectra and electrochemical properties of imidazol-linked iron phthalocyanine carbon electrode systems

  • B. Folkesson
  • L. Y. Johansson
  • R. Larsson
  • B. Yom Tov
Papers

Abstract

Electrodes for the electrochemical reduction of oxygen have been studied both galvanostatically and by XPS and IR spectroscopy. The electrodes contain a polymeric phthalocyanine catalyst fixed to an activated carbon carrier by a covalent link of imidazol. Various preparation methods have been tried to make conditions for the coupling of imidazol to the carbon surface as mild as possible. It is concluded from the XPS measurements that about one imidazol molecule is present for every second C6 unit on the carbon surface. The treatment described results in highly reversible electrode systems. The lifetime of the electrode is limited to several hundred hours, the sudden decrease thereafter is probably related to a solvolysis of the carbon-nitrogen bond linking the imidazol to the surface.

Keywords

Activate Carbon Imidazol Phthalocyanine Carbon Surface Solvolysis 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Chapman and Hall Ltd. 1983

Authors and Affiliations

  • B. Folkesson
    • 1
  • L. Y. Johansson
    • 1
  • R. Larsson
    • 1
  • B. Yom Tov
    • 1
  1. 1.Inorganic Chemistry 1, Chemical CenterUniversity of LundLund 7Sweden

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