A novel TiO2 nanotube arrays/MgTixOy multiphase-heterojunction film with high efficiency for photoelectrochemical cathodic protection. (15th April 2020)

• Record Type: Journal Article
• Authors: Feng, Chang; Chen, Zhuoyuan; Jing, Jiangping; Sun, Mengmeng; Lu, Guiying; Tian, Jing; Hou, Jian
• Is Part Of: Corrosion science. Volume 166(2020)
• Publication Date: 2020-04-15
• Subjects: A. TiO2/MgTixOy -- A. Multiphase-heterojunction film -- B. SKP -- C. Photoelectrochemical cathodic protection -- C. Stability; Corrosion and anti-corrosives -- Periodicals; 620.11223
• DOI: 10.1016/j.corsci.2020.108441
• Languages: English
• ISSNs: 0010-938X

Abstract

Graphical abstract: Highlights: TiO2 /MgTix Oy multiphase-heterojunction film was successfully prepared. SKP is used to measure the surface work function of the photoelectrodes. TiO2 /MgTix Oy exhibits significantly enhanced PECCP Performance. TiO2 /MgTix Oy shows high PECCP stability. The mechanism of TiO2 /MgTix Oy multiphase heterojunctions for PECCP is proposed. Abstract: 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 TiO2 /MgTix Oy 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 TiO2 /MgTix Oy 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 TiO2 /MgTix Oy multiphase-heterojunction film for characterizing its PECCP performance.