NDLI: An electrochemical method to enhance the performance of metal oxides for photoelectrochemical water oxidation

Content Provider	Royal Society of Chemistry (RSC)
Author	Zhang, Jin Z. Wang, Hanyu Li, Yat Tong, Yexiang Wang, Gongming Ling, Yichuan Lu, Xihong Yang, Yi Pu, Ying-Chih
Copyright Year	2016
Abstract	It has recently been demonstrated that the photoelectrochemical performance of a number of metal oxides can be substantially improved by controllably increasing their carrier densities through controlled introduction of defects such as oxygen vacancies. The creation of defects can be achieved via different synthetic methods, including hydrogenation, thermal treatment in oxygen deficient environment, chemical reductions, ion bombardment and electrochemical reductions. Here we report a general strategy to prepare oxygen-deficient metal oxides, including WO3, TiO2 (rutile and anatase), BiVO4, and ZnO, by electrochemically induced formation of low valent metal species. These electrochemically treated metal oxides show significantly enhanced photoactivity, as a result of improved charge injection and charge separation efficiency. The reported electrochemical method in this work represents a simple, rapid, highly scalable and safe approach to prepare high performance metal oxide photoanodes.
Starting Page	2849
Ending Page	2855
Page Count	7
File Format	HTM / HTML PDF
ISSN	20507488
Volume Number	4
Issue Number	8
Journal	Journal of Materials Chemistry A
DOI	10.1039/c5ta10477g
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Photoelectrochemical cell Oxygen Hydrogenation Ion Electrochemistry Titanium dioxide Anatase
Content Type	Text
Resource Type	Article
Subject	Chemistry Renewable Energy, Sustainability and the Environment Materials Science

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