Enhanced photoelectrochemical cathodic protection performance of H2O2-treated In2O3 thin-film photoelectrode under visible light

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	Enhanced photoelectrochemical cathodic protection performance of H2O2-treated In2O3 thin-film photoelectrode under visible light
	Sun, Mengmeng; Chen, Zhuoyuan; Bu, Yuyu
刊名	SURFACE & COATINGS TECHNOLOGY
	2015-03-25
卷号	266 页码:79-87
关键词	Photoelectrochemical cathodic protection Indium oxide Visible light Adsorbed oxygen Oxygen vacancy H2O2 treatment
英文摘要	In this work, a H2O2-treated indium oxide (In2O3) semiconductor material was prepared. The photoelectrochemical cathodic protection performance and the photoelectrochemical behaviors of the H2O2-treated In2O3 were investigated. Under visible light illumination, the H2O2-treated In2O3 exhibits enhanced photoelectrochemical conversion efficiency ( the photoinduced current density was increased by approximately 50%) and enhanced photoelectrochemical cathodic protection performance (the photoinduced cathodic protection current density was increased by approximately 81.8%). The concentrations of adsorbed oxygen and oxygen vacancy in In2O3 were increased after H2O2 treatment, resulting in the enhancement of visible light absorption activity of the H2O2-treated In2O3. With the increase of the concentration of oxygen vacancy, the Fermi level of In2O3 negatively shifts, which promotes the photoelectrochemical cathodic protection performance of the H2O2-treated In2O3. The increased surface adsorbed oxygen groups is beneficial for capturing the photoinduced electrons, resulting in the promotion of the separation efficiency of the photogenerated electron-hole pairs and the electron transfer capability, and hence leading to the increase of the photoelectrochemical cathodic protection performance of the H2O2-treated In2O3. (C) 2015 Published by Elsevier B.V.
收录类别	SCI
语种	英语
WOS记录号	WOS:000352664600012
公开日期	2015-06-16
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/25472]
专题	海洋研究所_海洋腐蚀与防护研究发展中心
作者单位	Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Sun, Mengmeng,Chen, Zhuoyuan,Bu, Yuyu. Enhanced photoelectrochemical cathodic protection performance of H2O2-treated In2O3 thin-film photoelectrode under visible light[J]. SURFACE & COATINGS TECHNOLOGY,2015,266:79-87.
APA	Sun, Mengmeng,Chen, Zhuoyuan,&Bu, Yuyu.(2015).Enhanced photoelectrochemical cathodic protection performance of H2O2-treated In2O3 thin-film photoelectrode under visible light.SURFACE & COATINGS TECHNOLOGY,266,79-87.
MLA	Sun, Mengmeng,et al."Enhanced photoelectrochemical cathodic protection performance of H2O2-treated In2O3 thin-film photoelectrode under visible light".SURFACE & COATINGS TECHNOLOGY 266(2015):79-87.