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

Authors
  • Michaud, P-A.1
  • Panizza, M.2
  • Ouattara, L.3
  • Diaco, T.2
  • Foti, G.1
  • Comninellis, Ch.1
  • 1 Swiss Federal Institute of Technology, ISP-BS, Lausanne, CH-1015, Switzerland , Lausanne
  • 2 Università di Genova, Dipartimento di Ingegneria Chimica e di Processo, P. le J.F. Kennedy 1, Genova, 16129, Italy , Genova
  • 3 Université Cocody, Laboratoire de Chimie Physique, Abidjan 22, Côte d'Ivoire, Italy , Côte d'Ivoire
Type
Published Article
Journal
Journal of Applied Electrochemistry
Publisher
Kluwer Academic Publishers
Publication Date
Feb 01, 2003
Volume
33
Issue
2
Pages
151–154
Identifiers
DOI: 10.1023/A:1024084924058
Source
Springer Nature
Keywords
License
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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.

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