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

By P. Michaud, Marco Panizza, L. Ouattara, T. Diaco, G. Fóti, C. Comninellis. 2003

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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.

Subfields: Electrochemistry, Renewable Energy, Sustainability and the Environment, Water Science and Technology

View Paper: https://www.semanticscholar.org/paper/75e2481e90d87db9e15702ae12f6e2663d002a66