Cu2O/CuO photocathode with improved stability for photoelectrochemical water reduction

Jingfeng Han; Xu Zong; Xin Zhou; Can Li

doi:10.1039/C4RA13896A

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Cu₂O/CuO photocathode with improved stability for photoelectrochemical water reduction†

Jingfeng Han,^ab Xu Zong,^a Xin Zhou^a and Can Li*^a

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* Corresponding authors

^a State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian National Laboratory for Clean Energy, Dalian 116023, China
E-mail: canli@dicp.ac.cn
Web: http://www.canli.dicp.ac.cn
Fax: +86 411 84694447
Tel: +86 411 84379070

^b Graduate School of the Chinese Academy of Sciences, Beijing, China

Abstract

A p-type cuprous oxide (Cu₂O) photocathode covered with a thin layer of cupric oxide (CuO) was prepared by fast annealing of a copper foil via H₂–O₂ flame. The as-prepared composite photocathode is characteristic of a junction structure formed between the (110) plane of Cu₂O and the (111) plane of CuO. The Cu₂O/CuO composite photocathode showed improved stability for photoelectrochemical (PEC) water reduction by increasing the coverage of CuO on Cu₂O.

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Article information

DOI: https://doi.org/10.1039/C4RA13896A
Article type: Communication
Submitted: 05 Nov 2014
Accepted: 09 Jan 2015
First published: 09 Jan 2015

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RSC Adv., 2015,5, 10790-10794

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Cu₂O/CuO photocathode with improved stability for photoelectrochemical water reduction

J. Han, X. Zong, X. Zhou and C. Li, RSC Adv., 2015, 5, 10790 DOI: 10.1039/C4RA13896A

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