Journal of Applied Electrochemistry

, Volume 33, Issue 2, pp 151–154 | Cite as

Electrochemical oxidation of water on synthetic boron-doped diamond thin film anodes

  • P-A. Michaud
  • M. Panizza
  • L. Ouattara
  • T. Diaco
  • G. Foti
  • Ch. Comninellis
Article

Abstract

Electrolysis in aqueous 1 M HClO4 and 1 M H2SO4 solutions has been carried out under galvanostatic conditions using boron-doped diamond electrodes (BDD). Analyses of the oxidation products have shown that in 1 M HClO4 the main reaction is oxygen evolution, while in H2SO4 the main reaction is the formation of H2S2O8. In both electrolytes small amounts of O3 and H2O2 are formed. Finally, a simplified mechanism involving hydroxyl radicals formed by water discharge has been proposed for water oxidation on boron-doped diamond anodes.

boron-doped diamond electrode hydroxyl radical water oxidation 

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Copyright information

© Kluwer Academic Publishers 2003

Authors and Affiliations

  • P-A. Michaud
    • 1
  • M. Panizza
    • 2
  • L. Ouattara
    • 3
  • T. Diaco
    • 2
  • G. Foti
    • 1
  • Ch. Comninellis
    • 1
  1. 1.Swiss Federal Institute of Technology, ISP-BSLausanneSwitzerland
  2. 2.Dipartimento di Ingegneria Chimica e di ProcessoUniversità di GenovaGenovaItaly
  3. 3.Laboratoire de Chimie PhysiqueUniversité CocodyCôte d'IvoireItaly

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