RuO2-loaded Sr2+-doped CeO2 with d0 Electronic Configuration as a New Photocatalyst for Overall Water Splitting

Abstract Ruthenium oxide-loaded Sr2+-doped CeO2 with f0d0 electronic configuration was found to have photocatalytic activity for overall water splitting into H2 and O2 under UV irradiation, whereas neither undoped CeO2 nor stoichiometric compounds such as SrCeO3 and Sr2CeO4 was photocatalytically active.