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Title: Ion-exchangeable oxides with layered perovskite structures as photocatalysts for overall water splitting

Abstract

A novel series of photocatalysts for an overall water splitting is reported. The catalysts have a layered perovskite type structure with a general formula of A{sub 2{minus}x}La{sub 2}Ti{sub 3{minus}x}Nb{sub x}O{sub 10} (A = K, Rb, Cs; x = 0, 0.5, 1.0). The catalysts, except for the one with x = 1.0, are spontaneously hydrated, and the band gap irradiation induced efficient evolution of H{sub 2} and O{sub 2} in a stoichiometric ratio from an aqueous alkaline solution when a proper amount of Ni loading was made. The reaction mechanism of water splitting on these catalysts is discussed on the bases of the structural study of the catalysts.

Authors:
; ; ;  [1]; ;  [2]
  1. Tokyo Inst. of Tech., Yokohama (Japan). Research Lab. of Resources Utilization
  2. Nikon Corp., Sagamihara (Japan)
Publication Date:
OSTI Identifier:
571974
Report Number(s):
CONF-961202-
ISBN 1-55899-358-4; TRN: IM9806%%172
Resource Type:
Conference
Resource Relation:
Conference: 1996 Fall meeting of the Materials Research Society (MRS), Boston, MA (United States), 2-6 Dec 1996; Other Information: PBD: 1997; Related Information: Is Part Of Advanced catalytic materials -- 1996; Lednor, P.W. [ed.] [Shell Research and Technology Centre, Amsterdam (Netherlands)]; Ledoux, M.J. [ed.] [Univ. of Strasbourg (France)]; Nagaki, D.A. [ed.] [Union Carbide Corp., South Charleston, WV (United States)]; Thompson, L.T. [ed.] [Univ. of Michigan, Ann Arbor, MI (United States)]; PB: 319 p.; Materials Research Society symposium proceedings, Volume 454
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; 08 HYDROGEN FUEL; HYDROGEN PRODUCTION; CATALYSTS; PHOTOLYSIS; WATER; MICROSTRUCTURE; CHEMICAL REACTION KINETICS; LANTHANUM OXIDES; TITANIUM OXIDES; NIOBIUM OXIDES; POTASSIUM OXIDES; RUBIDIUM OXIDES; CESIUM OXIDES; CATALYTIC EFFECTS

Citation Formats

Takata, T, Hara, M, Kondo, J N, Domen, K, Shinohara, K, and Tanaka, A. Ion-exchangeable oxides with layered perovskite structures as photocatalysts for overall water splitting. United States: N. p., 1997. Web.
Takata, T, Hara, M, Kondo, J N, Domen, K, Shinohara, K, & Tanaka, A. Ion-exchangeable oxides with layered perovskite structures as photocatalysts for overall water splitting. United States.
Takata, T, Hara, M, Kondo, J N, Domen, K, Shinohara, K, and Tanaka, A. 1997. "Ion-exchangeable oxides with layered perovskite structures as photocatalysts for overall water splitting". United States.
@article{osti_571974,
title = {Ion-exchangeable oxides with layered perovskite structures as photocatalysts for overall water splitting},
author = {Takata, T and Hara, M and Kondo, J N and Domen, K and Shinohara, K and Tanaka, A},
abstractNote = {A novel series of photocatalysts for an overall water splitting is reported. The catalysts have a layered perovskite type structure with a general formula of A{sub 2{minus}x}La{sub 2}Ti{sub 3{minus}x}Nb{sub x}O{sub 10} (A = K, Rb, Cs; x = 0, 0.5, 1.0). The catalysts, except for the one with x = 1.0, are spontaneously hydrated, and the band gap irradiation induced efficient evolution of H{sub 2} and O{sub 2} in a stoichiometric ratio from an aqueous alkaline solution when a proper amount of Ni loading was made. The reaction mechanism of water splitting on these catalysts is discussed on the bases of the structural study of the catalysts.},
doi = {},
url = {https://www.osti.gov/biblio/571974}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Dec 31 00:00:00 EST 1997},
month = {Wed Dec 31 00:00:00 EST 1997}
}

Conference:
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