Photochemical Synthesis of Fe(III)–Cr(III) Mixed Oxide Nanoparticles on Strontium Titanate Powder and Their Application as Water Oxidation Cocatalysts

Amorphous Fe(III)–Cr(III) mixed oxide nanoparticles were deposited on the surface of powdered SrTiO3 from an aqueous solution containing FeCl3 and K2CrO4, using a photochemical method and without the aid of a heat treatment. The mixed oxide was found to function as a cocatalyst for water oxidation.