Boron oxynitride nanoclusters on tungsten trioxide as a metal-free cocatalyst for photocatalytic oxygen evolution from water splitting

Here we show that B(2)O(3-x)N(x) nanoclusters can be formed on the surface of WO(3) particles by a combination of thermal oxidation of tungsten boride (WB) in air and the subsequent nitriding process in gaseous ammonia. The resultant nanoclusters are found to play an apparent role in improving the p...

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Bibliographic Details
Published in:Nanoscale 2012-02, Vol.4 (4), p.1267-1270
Main Authors: Xie, Ying Peng, Liu, Gang, Lu, Gao Qing Max, Cheng, Hui-Ming
Format: Article
Language:English
Subjects:
Borides
Evolution
Nanocomposites
Nanomaterials
Nanostructure
Photocatalysis
Tungsten
Tungsten oxides
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Summary:Here we show that B(2)O(3-x)N(x) nanoclusters can be formed on the surface of WO(3) particles by a combination of thermal oxidation of tungsten boride (WB) in air and the subsequent nitriding process in gaseous ammonia. The resultant nanoclusters are found to play an apparent role in improving the photocatalytic oxygen evolution of WO(3) by promoting the surface separation of photoexcited charge-carriers.
ISSN:2040-3364
2040-3372
DOI:10.1039/c2nr11846g