title: Cobalt-modified porous single-crystalline LaTiO2N for highly efficient water oxidation under visible light.
abstract: Highly efficient water oxidation utilizing visible photons of up to 600 nm is a crucial step in artificial photosynthesis. Here we present a highly active photocatalyst for visible-light-driven water oxidation, consisting of single-crystalline meso- and macroporous LaTiO(2)N (LTON) with a band gap of 2.1 eV, and earth-abundasnt cobalt oxide (CoO(x)) as a cocatalyst. The optimized CoO(x)/LTON had a high quantum efficiency of 27.1 ± 2.6% at 440 nm, which substantially exceeds the values reported for previous particulate photocatalysts with a 600-nm absorption edge.
authors.affiliation: Department of Chemical System Engineering, School of Engineering, The University of Tokyo, Bunkyo-ku, Japan.
authors.forename: Fuxiang
authors.initials: F
authors.lastname: Zhang
authors.forename: Akira
authors.initials: A
authors.lastname: Yamakata
authors.forename: Kazuhiko
authors.initials: K
authors.lastname: Maeda
authors.forename: Yosuke
authors.initials: Y
authors.lastname: Moriya
authors.forename: Tsuyoshi
authors.initials: T
authors.lastname: Takata
authors.forename: Jun
authors.initials: J
authors.lastname: Kubota
authors.forename: Katsuya
authors.initials: K
authors.lastname: Teshima
authors.forename: Shuji
authors.initials: S
authors.lastname: Oishi
authors.forename: Kazunari
authors.initials: K
authors.lastname: Domen