IOCAS-IR  > 海洋环境腐蚀与与生物污损重点实验室
Study of the photoelectrochemical cathodic protection mechanism for steel based on the SrTiO3-TiO2 composite
Bu, Yuyu1,2; Chen, Zhuoyuan1,3; Ao, Jinping2; Hou, Jian3; Sun, Mingxian3
2018-01-15
Source PublicationJOURNAL OF ALLOYS AND COMPOUNDS
ISSN0925-8388
Volume731Pages:1214-1224
Corresponding AuthorChen, Zhuoyuan(zychen@qdio.ac.cn) ; Ao, Jinping(jpao@ee.tokushima-u.ac.jp)
AbstractUp 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.
KeywordPEC cathodic protection SrTiO3-TiO2 composite Semiconductor energy bands Q235 carbon steel 304 stainless steel
DOI10.1016/j.jallcom.2017.10.165
Indexed BySCI
Language英语
Funding ProjectNational 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 Research AreaChemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectChemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000415930900155
PublisherELSEVIER SCIENCE SA
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/157303
Collection海洋环境腐蚀与与生物污损重点实验室
Corresponding AuthorChen, Zhuoyuan; Ao, Jinping
Affiliation1.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
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
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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