A current key challenge in the development of artificial photosynthesis devices is overcoming the high activation barrier of water oxidation, which often limits the overall efficiency of the device. Many catalyst systems reported to date suffer from problems such as the use of corrosive reaction conditions, poor stability, low activity, and reliance on rare metals. In this report, nano-structured cobalt metaphosphate material Co(PO3)2 was prepared via thermolytic molecular precursor (TMP) approach. This material exhibits fast electrocatalytic water oxidation with turnover frequency of 0.21 s-1, and exhibits modest onset overpotential at neutral pH. The cobalt metaphosphate catalyst also displays enhanced stability over cobalt oxide at pH 6-7.

Cobalt metaphosphate Co(PO<sub>3</sub>)<sub>2</sub> as an electrocatalyst for water oxidation

243rd National Meeting (2012)

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Cobalt metaphosphate Co(PO3)2 as an electrocatalyst for water oxidation

Cobalt metaphosphate Co(PO₃)₂ as an electrocatalyst for water oxidation