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Efficient TiO2/AgInS2/ZnS Nanoarchitecture Photoelectrode for the Photoelectrochemical Cathodic Protection of Copper in NaCl Solution
Lu, Guiying1,2,3; Sun, Mengmeng1,2,4; Chen, Zhuoyuan1,2,4; Jiang, Xuhong1,2,3; Jing, Jiangping1,2,4
2020-11-01
Source PublicationJOURNAL OF THE ELECTROCHEMICAL SOCIETY
ISSN0013-4651
Volume167Issue:14Pages:10
Corresponding AuthorChen, Zhuoyuan(zychen@qdio.ac.cn)
AbstractAn environmentally friendly AgInS2/ZnS nanoparticles (NPs) co-sensitized TiO2 ultrafine branched nanolawn photoelectrode was constructed by depositing AgInS2 sensitizer and ZnS passivator on TiO2 ultrafine nanostructure. This architecture significantly improved the photoelectrochemical conversion efficiency and photoelectrochemical cathodic protection performance for pure copper with a more negative self-corrosion potential under simulated sunlight illumination and in NaCl solution containing no additional hole scavengers. Compared with single AgInS2 NPs sensitized TiO2, the design of ZnS passivation layer on TiO2/AgInS2 significantly improves the charge generation and separation efficiency, and promotes the consumption of the photogenerated holes. The three-dimensional TiO2 with porous ultrafine nanobranched structure possesses high-speed electron transmission pathways and facilitates the rapid collection and migration of the photogenerated electrons. Since the conduction band potentials of AgInS2 and ZnS are more negative, the photogenerated electrons generated by TiO2/AgInS2/ZnS will be maintained at a more negative quasi-Fermi level. This ensures that the photogenerated electrons can be transferred to pure copper. The present work provides new ideas for designing nanoheterojunction materials for the protection of pure copper and other metallic materials with more negative self-corrosion potentials exposed in marine environment under simulated sunlight illumination.
KeywordTiO2 AgInS2 ZnS nanoheterojunction photoelectrochemical cathodic protection pure copper NaCl solution
DOI10.1149/1945-7111/abc594
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[41676069] ; National Natural Science Foundation of China[41976036] ; National Natural Science Foundation of China[41906034] ; Key Research and Development Program of Shandong Province[2019GHY112085] ; Key Research and Development Program of Shandong Province[2019GHY112066]
WOS Research AreaElectrochemistry ; Materials Science
WOS SubjectElectrochemistry ; Materials Science, Coatings & Films
WOS IDWOS:000590262600001
PublisherELECTROCHEMICAL SOC INC
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/169157
Collection海洋环境腐蚀与生物污损重点实验室
Corresponding AuthorChen, Zhuoyuan
Affiliation1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, Qingdao 266071, Peoples R China
2.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao 266071, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Pilot Natl Lab Marine Sci & Technol Qingdao, Open Studio Marine Corros & Protect, Qingdao 266237, Peoples R China
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences;  Center for Ocean Mega-Science, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences;  Center for Ocean Mega-Science, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Lu, Guiying,Sun, Mengmeng,Chen, Zhuoyuan,et al. Efficient TiO2/AgInS2/ZnS Nanoarchitecture Photoelectrode for the Photoelectrochemical Cathodic Protection of Copper in NaCl Solution[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY,2020,167(14):10.
APA Lu, Guiying,Sun, Mengmeng,Chen, Zhuoyuan,Jiang, Xuhong,&Jing, Jiangping.(2020).Efficient TiO2/AgInS2/ZnS Nanoarchitecture Photoelectrode for the Photoelectrochemical Cathodic Protection of Copper in NaCl Solution.JOURNAL OF THE ELECTROCHEMICAL SOCIETY,167(14),10.
MLA Lu, Guiying,et al."Efficient TiO2/AgInS2/ZnS Nanoarchitecture Photoelectrode for the Photoelectrochemical Cathodic Protection of Copper in NaCl Solution".JOURNAL OF THE ELECTROCHEMICAL SOCIETY 167.14(2020):10.
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