期刊
RSC ADVANCES
卷 9, 期 15, 页码 8350-8354出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c9ra00865a
关键词
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资金
- National Nature Science Foundation of China [21606171]
- China Postdoctoral Science Foundation [2015M580205, 2017T100160]
- Tianjin University Independent Innovation Foundation [1705]
CuO is a promising but unstable photocathode in solar water splitting. Herein, a flexible CuO photocathode is prepared and its degradation mechanisms and stabilization strategies have been discussed. Briefly, we find alkali environment and low light intensity are the critical factors in the stabilization of the CuO photocathode. For practical usage, a composite semiconductor layer, composed of TiO2, La2O3 and NiO, is deposited on the CuO photocathode, which is proved to be effective for enhancing the stabilization of the CuO photocathode. 100% of the photocurrent density has been retained after 20 minutes of continuous illumination. The optimized stable photocurrent density is measured as 0.3 mA cm(-2) at 0.5 V-RHE.
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