METHOD FOR DECOMPOSING WATER INTO H2 AND O2

A CoVOcomposite electrode and method of making is described. The composite electrode comprises a substrate with an average 0.5-5 μm thick layer of CoVOhaving pores with average diameters of 2-200 nm. The method of making the composite electrode involves contacting the substrate with an aerosol comprising a solvent, a cobalt complex, and a vanadium complex. The CoVOcomposite electrode is capable of being used in an electrochemical cell for water oxidation.