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Crystallization of Tungsten Trioxide Having Small Mesopores: Highly Efficient Photoanode for Visible‐Light‐Driven Water Oxidation
Author(s) -
Chandra Debraj,
Saito Kenji,
Yui Tatsuto,
Yagi Masayuki
Publication year - 2013
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201306004
Subject(s) - tungsten trioxide , mesoporous material , materials science , visible spectrum , crystallization , nanotechnology , tungsten , semiconductor , computer science , chemical engineering , optoelectronics , chemistry , catalysis , metallurgy , biochemistry , engineering
Small mesopores are more efficient : A mesoprous oxide semiconductor (tungsten trioxide) having small mesopores was crystallized at high temperature (550 °C) by a simple one‐step procedure. The highly crystalline mesoporous WO 3 has an extremely high surface area which improves the visible‐light‐driven photoelectrochemical performance of water oxidation (see picture) relative to WO 3 having interparticle mesopores.