Study of the photoelectrochemical cathodic protection mechanism for steel based on the SrTiO3-TiO2 composite

doi:10.1016/j.jallcom.2017.10.165

	Study of the photoelectrochemical cathodic protection mechanism for steel based on the SrTiO3-TiO2 composite
	Bu, Yuyu 1,2; Chen, Zhuoyuan 1,3; Ao, Jinping 2; Hou, Jian 3; Sun, Mingxian 3
	2018-01-15
发表期刊	JOURNAL OF ALLOYS AND COMPOUNDS
ISSN	0925-8388
卷号	731 页码:1214-1224
通讯作者	Chen, Zhuoyuan(zychen@qdio.ac.cn) ; Ao, Jinping(jpao@ee.tokushima-u.ac.jp)
摘要	Up to now the mechanism of the photoelectrochemical (PEC) cathodic protection of the semiconductor materials is still unclear. In this work, the conduction band (CB) potential of the SrTiO3-TiO2 composite was regulated by controlling the deposition amount of SrTiO3 on the surface of TiO2 nanotube arrays. When the hydrothermal treating time was 1 h, the prepared SrTiO3-TiO2 photoanode (denoted as SrTiO3-TiO2-1) exhibited the most excellent PEC cathodic protection performance for 304 stainless steel and Q235 carbon steel in NaCl electrolyte. Further analysis indicates that the PEC cathodic protection performance of the photoanode is determined by the CB potential of the n-type semiconductor material, the separation efficiency of the photogenerated electron-hole pairs and the redox potential of the electrolyte. Among them, sufficient negative CB potential is the prerequisite for providing the PEC cathodic protection for the coupled metals. Under this premise, the higher the separation efficiency of the photogenerated electron-hole pairs and the more negative redox potential of the electrolyte are, a more negative potential of the coupled metal can be cathodically polarized to under the illumination of incident light with suitable wavelength. (C) 2017 Elsevier B.V. All rights reserved.
关键词	PEC cathodic protection SrTiO3-TiO2 composite Semiconductor energy bands Q235 carbon steel 304 stainless steel
DOI	10.1016/j.jallcom.2017.10.165
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[41506093] ; National Natural Science Foundation of China[41376126] ; Qingdao Innovative Leading Talent Foundation[15-10-3-15-(39)-zch] ; Qingdao Science and Technology Achievement Transformation Guidance Plan (Applied Basic Research)[14-2-4-4-jch] ; State Key Laboratory for Marine Corrosion and Protection, Luoyang Ship Material Research Institute, China[KF160402] ; State Key Laboratory for Marine Corrosion and Protection, Luoyang Ship Material Research Institute, China[KF160413] ; National Natural Science Foundation of China[41506093] ; National Natural Science Foundation of China[41376126] ; Qingdao Innovative Leading Talent Foundation[15-10-3-15-(39)-zch] ; Qingdao Science and Technology Achievement Transformation Guidance Plan (Applied Basic Research)[14-2-4-4-jch] ; State Key Laboratory for Marine Corrosion and Protection, Luoyang Ship Material Research Institute, China[KF160402] ; State Key Laboratory for Marine Corrosion and Protection, Luoyang Ship Material Research Institute, China[KF160413] ; National Natural Science Foundation of China[41506093] ; National Natural Science Foundation of China[41376126] ; Qingdao Innovative Leading Talent Foundation[15-10-3-15-(39)-zch] ; Qingdao Science and Technology Achievement Transformation Guidance Plan (Applied Basic Research)[14-2-4-4-jch] ; State Key Laboratory for Marine Corrosion and Protection, Luoyang Ship Material Research Institute, China[KF160402] ; State Key Laboratory for Marine Corrosion and Protection, Luoyang Ship Material Research Institute, China[KF160413]
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000415930900155
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：39[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/157303
专题	海洋环境腐蚀与生物污损重点实验室
通讯作者	Chen, Zhuoyuan; Ao, Jinping
作者单位	1.Chinese Acad Sci, Key Lab Marine Environm Corros & Biofouling, Inst Oceanol, 7 Nanhai Rd, Qingdao 266071, Peoples R China 2.Tokushima Univ, Inst Technol & Sci, 2-1 Minami Josanjima, Tokushima 7708506, Japan 3.Luoyang Ship Mat Res Inst, State Key Lab Marine Corros & Protect, Wenhai Rd, Qingdao 266237, Peoples R China
第一作者单位	中国科学院海洋研究所
通讯作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Bu, Yuyu,Chen, Zhuoyuan,Ao, Jinping,et al. Study of the photoelectrochemical cathodic protection mechanism for steel based on the SrTiO3-TiO2 composite[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2018,731:1214-1224.
APA	Bu, Yuyu,Chen, Zhuoyuan,Ao, Jinping,Hou, Jian,&Sun, Mingxian.(2018).Study of the photoelectrochemical cathodic protection mechanism for steel based on the SrTiO3-TiO2 composite.JOURNAL OF ALLOYS AND COMPOUNDS,731,1214-1224.
MLA	Bu, Yuyu,et al."Study of the photoelectrochemical cathodic protection mechanism for steel based on the SrTiO3-TiO2 composite".JOURNAL OF ALLOYS AND COMPOUNDS 731(2018):1214-1224.

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