title: Facile fabrication of an efficient oxynitride TaON photoanode for overall water splitting into H2 and O2 under visible light irradiation.
abstract: The porous oxynitride TaON film electrode prepared on conducting glass (FTO) showed significantly high quantum efficiency (IPCE = ca. 76% at 400 nm at 0.6 V vs Ag/AgCl) in an aqueous Na(2)SO(4) solution, after loading of IrO(2) x nH(2)O nanoparticles as a cocatalyst for water oxidation. Overall water splitting into H(2) and O(2) under visible light was demonstrated using an IrO(2) x nH(2)O-loaded TaON photoanode combined with a Pt electrode under an externally applied bias (0.6-1 V).
authors.affiliation: Catalysis Research Center, Hokkaido University, North 21, West 10, Sapporo 001-0021, Japan. ryu-abe@cat.hokudai.ac.jp
authors.forename: Ryu
authors.initials: R
authors.lastname: Abe
authors.forename: Masanobu
authors.initials: M
authors.lastname: Higashi
authors.forename: Kazunari
authors.initials: K
authors.lastname: Domen
mesh_terms: D004563:Electrochemistry; D004566:Electrodes; D006859:Hydrogen / Q000737:chemistry*; D007495:Iridium / Q000737:chemistry; D008027:Light; D008567:Membranes, Artificial; D010100:Oxygen / Q000737:chemistry*; D010777:Photochemistry; D016062:Porosity; D011789:Quantum Theory; D013499:Surface Properties; D013635:Tantalum / Q000737:chemistry*; D014867:Water / Q000737:chemistry*
chemical_list: D008567:Membranes, Artificial; D014867:Water; C044458:iridium oxide; D007495:Iridium; D013635:Tantalum; D006859:Hydrogen; D010100:Oxygen