Water oxidation still presents a challenge in the development of renewable fuels. Nocera and co-workers have reported and thoroughly studied films of cobalt oxide phosphate deposited on electrodes as effective catalysts for the electrochemical oxidation of water. We report enhancement of the catalytic activity of these films using polyvanadates. When polyvanadates are present during film growth, vanadium is incorporated into the film, which results in a shift in the onset potential for catalytic water oxidation to less positive values. The presence of vanadium in the film's structure has been determined by XPS, UV-Vis, NMR and FT-IR spectroscopies. The catalytic activity of these films has been assessed using standard electrochemical techniques.

Enhancement of Co oxide phosphate films for water oxidation using polyvanadates

244th National Meeting (2012)

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