title: Water oxidation using a particulate BaZrO3-BaTaO2N solid-solution photocatalyst that operates under a wide range of visible light.
abstract: Tripping the light fantastic: Despite small band gap energies (1.7-1.8 eV), BaZrO(3)-BaTaO(2)N solid solutions (Zr/Ta≤0.1) are capable of photocatalyzing both water oxidation and reduction even under irradiation above 660 nm. Solar water splitting to form H(2) and O(2) was also demonstrated using a photoelectrochemical cell consisting of a BaZrO(3)-BaTaO(2)N solid solution as an anode and a Pt wire cathode.
authors.affiliation: Department of Chemistry, Graduate School of Science and Engineering, Tokyo Institute of Technology, Meguro-ku, Tokyo, Japan. maeda.k.ah@m.titech.ac.jp
authors.forename: Kazuhiko
authors.initials: K
authors.lastname: Maeda
authors.forename: Kazunari
authors.initials: K
authors.lastname: Domen
mesh_terms: D017609:Barium Compounds / Q000737:chemistry*; D002384:Catalysis; D004566:Electrodes; D008027:Light; D010084:Oxidation-Reduction; D055668:Photochemical Processes; D012666:Semiconductors; D014867:Water / Q000737:chemistry*
chemical_list: D017609:Barium Compounds; D014867:Water