title: Preparation of p-type CaFe2O4 photocathodes for producing hydrogen from water.
abstract: An (hk0)-oriented p-type CaFe2O4 (E(g): 1.9 eV) photocathode was prepared, and hydrogen and oxygen gases were produced from a photocell short-circuited by connecting the CaFe2O4 and n-type TiO2 electrodes under illumination without applying an external voltage. The open-circuited voltage was 0.97 V and the short-circuit current was about 200 μA/cm(2), and the amount of evaluated hydrogen and oxygen gases after 2 days of reaction were about 70 and 4 μmol, respectively.
authors.affiliation: Department of Applied Chemistry, Faculty of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan. s-ida@cstf.kyushu-u.ac.jp
authors.forename: Shintaro
authors.initials: S
authors.lastname: Ida
authors.forename: Keisuke
authors.initials: K
authors.lastname: Yamada
authors.forename: Takuya
authors.initials: T
authors.lastname: Matsunaga
authors.forename: Hidehisa
authors.initials: H
authors.lastname: Hagiwara
authors.forename: Yasumichi
authors.initials: Y
authors.lastname: Matsumoto
authors.forename: Tatsumi
authors.initials: T
authors.lastname: Ishihara