Activation of BaTaO2N Photocatalyst for Enhanced Non-Sacrificial Hydrogen Evolution from Water under Visible Light by Forming a Solid Solution with BaZrO3

被引：62

作者：

Matoba, Tamaki ^{[1
]}

Maeda, Kazuhiko ^{[1
,2
,3
]}

Domen, Kazunari ^{[1
]}

机构：

[1] Univ Tokyo, Dept Chem Syst Engn, Bunkyo Ku, Tokyo 1138656, Japan

[2] Precursory Res Embryon Sci & Technol PRESTO, Tokyo, Japan

[3] Sci & Technol Agcy JST, Kawaguchi, Saitama 3320012, Japan

来源：

CHEMISTRY-A EUROPEAN JOURNAL | 2011年 / 17卷 / 52期

关键词：

energy conversion; heterogeneous catalysis; photolysis; semiconductors; water splitting; SHUTTLE REDOX MEDIATOR; H-2; EVOLUTION; IRRADIATION; OXYNITRIDE; O-2; WO3; SR; BA; ATAO(2)N; CA;

D O I：

10.1002/chem.201102970

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

No sacrifice needed! Activation of perovskite-type BaTaO 2N (band gap: 1.8-1.9 eV) to improve photocatalytic activity for non-sacrificial H 2 evolution from water under visible light (λ>420 nm) was achieved by forming a solid solution with BaZrO 3, improving the performance six- to ninefold (see figure). The improvement is attributable to the increased driving force for the redox reactions and the reduced density of defects, which minimizes the undesirable electron-hole recombination. © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

引用

页码：14731 / 14735

页数：5

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