title: Microwave Effects on Co-Pi Cocatalysts Deposited on α-Fe2O3for Application to Photocatalytic Oxygen Evolution.
abstract: We analyze the effects of microwave applied in the process of photoelectrochemical deposition of cobalt-based cocatalysts, Co-Pi, onto well-orientated flat α-Fe2O3thin films, which were fabricated by pulsed laser deposition. As compared with conventional heating, microwave significantly affects the morphology, chemical composition, and photocatalytic activity of Co-Pi/α-Fe2O3composite. A significant enhancement in photocurrent related to photocatalytic water oxidation is achieved by the Co-Pi catalyst prepared under microwave irradiation. This, along with its interfacial electron-transfer properties, is studied by means of electrochemical impedance spectroscopy.
authors.affiliation: Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology , 2-12-1 Ookayama, Meguro, Tokyo 152-8550, Japan.
authors.forename: Masato M
authors.identifier: http://orcid.org/0000-0002-5730-0149
authors.initials: MM
authors.lastname: Maitani
authors.affiliation: Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology , 2-12-1 Ookayama, Meguro, Tokyo 152-8550, Japan.
authors.forename: Takuya
authors.initials: T
authors.lastname: Yamada
authors.affiliation: Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology , 2-12-1 Ookayama, Meguro, Tokyo 152-8550, Japan.
authors.forename: Hisanori
authors.initials: H
authors.lastname: Mashiko
authors.affiliation: Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology , 2-12-1 Ookayama, Meguro, Tokyo 152-8550, Japan.
authors.forename: Kohei
authors.initials: K
authors.lastname: Yoshimatsu
authors.affiliation: Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology , 2-12-1 Ookayama, Meguro, Tokyo 152-8550, Japan.
authors.forename: Takayoshi
authors.initials: T
authors.lastname: Oshima
authors.affiliation: Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology , 2-12-1 Ookayama, Meguro, Tokyo 152-8550, Japan.
authors.forename: Akira
authors.initials: A
authors.lastname: Ohtomo
authors.affiliation: Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology , 2-12-1 Ookayama, Meguro, Tokyo 152-8550, Japan.
authors.forename: Yuji
authors.initials: Y
authors.lastname: Wada
keywords: Co-Pi; cocatalysts; interface; microwave; photocatalysis; pulsed laser deposition; water splitting; α-Fe2O3