title: Electron transfer behavior and water photodecomposition ability of calcined material from a cerium-S-phenylene-O-holmium-O-phenylene-S hybrid copolymer.
abstract: Calcination of a cerium-S-phenylene-O-holmium-O-phenylene-S hybrid copolymer under a vacuum gave cerium oxide-carbon cluster-holmium oxide composite material. The material calcined at 600 degrees C loaded with Pt particles could decompose water to H2 and O2 with a H2/O2 ratio of 2 under visible light irradiation. ESR spectral examinations of the calcined materials revealed the possibility of a two-step electron transfer in the process of CeO2 --> carbon cluster --> Ho2O3 --> Pt with an oxidation site at CeO2 particles and a reduction site at Pt particles.
authors.affiliation: Department of Applied Chemistry, Faculty of Science and Engineering, Kinki University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan.
authors.forename: Hideo
authors.initials: H
authors.lastname: Matsui
authors.forename: Keigo
authors.initials: K
authors.lastname: Otsuki
authors.forename: Hiroyoshi
authors.initials: H
authors.lastname: Yamada
authors.forename: Tetsuro
authors.initials: T
authors.lastname: Kawahara
authors.forename: Masakuni
authors.initials: M
authors.lastname: Yoshihara