1. A novel TiO2 nanotube arrays/MgTixOy multiphase-heterojunction film with high efficiency for photoelectrochemical cathodic protection.
- Author
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Feng, Chang, Chen, Zhuoyuan, Jing, Jiangping, Sun, Mengmeng, Lu, Guiying, Tian, Jing, and Hou, Jian
- Subjects
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CATHODIC protection , *HETEROJUNCTIONS , *NANOTUBES , *ELECTRON work function , *ENERGY bands , *PERFORMANCE theory - Abstract
• TiO 2 /MgTi x O y multiphase-heterojunction film was successfully prepared. • SKP is used to measure the surface work function of the photoelectrodes. • TiO 2 /MgTi x O y exhibits significantly enhanced PECCP Performance. • TiO 2 /MgTi x O y shows high PECCP stability. • The mechanism of TiO 2 /MgTi x O y multiphase heterojunctions for PECCP is proposed. Heterojunction engineering, as a rising star in the photoelectrochemical cathodic protection (PECCP) field, contributes to promote the separation of the photoinduced electrons and holes. In this paper, the TiO 2 /MgTi x O y multiphase-heterojunction film was prepared and its PECCP performance was studied. Due to a good energy band alignment gradient formed between the multiphases, the separation efficiency of the photoinduced electrons and holes generated by TiO 2 /MgTi x O y are dramatically enhanced, leading to its good PECCP performance and high stability. SKP is, for the first time, used to study the surface work function of the TiO 2 /MgTi x O y multiphase-heterojunction film for characterizing its PECCP performance. [ABSTRACT FROM AUTHOR]
- Published
- 2020
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