Perovskite Oxide Nanosheets with Tunable Band-Edge Potentials and High Photocatalytic Hydrogen-Evolution Activity

被引：109

作者：

Maeda, Kazuhiko ^{[1
]}

Eguchi, Miharu ^{[2
,3
]}

Oshima, Takayoshi ^{[1
]}

机构：

[1] Tokyo Inst Technol, Dept Chem, Grad Sch Sci & Engn, Meguro Ku, Tokyo 1528550, Japan

[2] Univ Tsukuba, Grad Sch Pure & Appl Sci, Dept Chem, Tsukuba, Ibaraki 3058571, Japan

[3] Precursory Res Embryon Sci & Technol Japan Sci &, Kawaguchi, Saitama 3320012, Japan

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2014年 / 53卷 / 48期

关键词：

heterogeneous photocatalysis; layered compounds; nanosheets; perovskites; water splitting; CALCIUM NIOBATE NANOSHEETS; GOLD NANOPARTICLES; INTERCALATION; DELAMINATION; SEMICONDUCTORS; LUMINESCENCE; EXFOLIATION; HYDROXIDE; CATALYSTS; RAMAN;

D O I：

10.1002/anie.201408441

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Perovskite nanosheets of HCa2-xSrxNb3O10 and HCa2Nb3-yTayO10 with controlled band-edge potentials were prepared. They worked as highly efficient heterogeneous photocatalysts for H-2 evolution from a water/methanol mixture under band-gap irradiation. The activity was found to depend on the composition. The highest activity was obtained with HCa2Nb2TaO10 nanosheets, recording an apparent quantum yield of approximately 80% at 300 nm, which is the highest value for a nanosheet-based photocatalyst reported to date.

引用

页码：13164 / 13168

页数：5

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