Sub-nano CoOx attached onto WO3 for efficient photocatalytic and photoelectrochemical water oxidation

Xiubing Huang; Guixia Zhao; Ge Wang

doi:10.1039/C7TA08734A

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Sub-nano CoO_x attached onto WO₃ for efficient photocatalytic and photoelectrochemical water oxidation†

Xiubing Huang,

^a Guixia Zhao

*^b and Ge Wang

*^a

Author affiliations

* Corresponding authors

^a Beijing Key Laboratory of Function Materials for Molecule & Structure Construction, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, China
E-mail: gewang@mater.ustb.edu.cn

^b Laboratory of Industrial Chemistry, Ruhr-University Bochum, 44780 Bochum, Germany
E-mail: guixiazh@techem.ruhr-uni-bochum.de

Abstract

Here, a facile strategy is reported for attaching a sub-nano cobalt oxide catalyst onto a WO₃ surface using Co-EDTA as precursor, which greatly improved the WO₃ performance in OER to give a photocatalytic O₂ evolution rate of 314.3 μmol h⁻¹ and a photocurrent density of around 2.07 mA cm⁻² at 1.3 V vs. Ag/AgCl in photoelectrochemical water oxidation.

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Article information

DOI: https://doi.org/10.1039/C7TA08734A
Article type: Communication
Submitted: 03 Oct 2017
Accepted: 08 Nov 2017
First published: 09 Nov 2017

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J. Mater. Chem. A, 2017,5, 24631-24635

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Sub-nano CoO_x attached onto WO₃ for efficient photocatalytic and photoelectrochemical water oxidation

X. Huang, G. Zhao and G. Wang, J. Mater. Chem. A, 2017, 5, 24631 DOI: 10.1039/C7TA08734A

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Journal of Materials Chemistry A