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Issue 48, 2013
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Tungsten oxide-coated copper oxide nanowire arrays for enhanced activity and durability with photoelectrochemical water splitting

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Abstract

The deposition of crystalline CuWO4 and WO3 layers on copper oxide nanowire arrays resulted in a five-fold improvement of the photocurrent density (∼1.7 mA cm−2 at −0.1 V vs. RHE) over titania-coated copper oxide NW arrays. The deposition of WO3 or CuWO4 reduced the CuO phase impurities in Cu2O. The improvement in the phase purity of the nanowire arrays led to a considerable enhancement in the resulting photoactivity. These protective coatings have been shown to play a dual role of marginally extending the durability of the electrode and promoting charge separation.

Graphical abstract: Tungsten oxide-coated copper oxide nanowire arrays for enhanced activity and durability with photoelectrochemical water splitting

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Supplementary files

Article information


Submitted
28 Sep 2013
Accepted
14 Oct 2013
First published
15 Oct 2013

J. Mater. Chem. A, 2013,1, 15235-15241
Article type
Communication

Tungsten oxide-coated copper oxide nanowire arrays for enhanced activity and durability with photoelectrochemical water splitting

A. Martínez-García, V. K. Vendra, S. Sunkara, P. Haldankar, J. Jasinski and M. K. Sunkara, J. Mater. Chem. A, 2013, 1, 15235
DOI: 10.1039/C3TA13912C

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