Efficient TiO2/AgInS2/ZnS Nanoarchitecture Photoelectrode for the Photoelectrochemical Cathodic Protection of Copper in NaCl Solution | |
Lu, Guiying1,3,4; Sun, Mengmeng1,2,3; Chen, Zhuoyuan1,2,3; Jiang, Xuhong1,3,4; Jing, Jiangping1,2,3 | |
刊名 | JOURNAL OF THE ELECTROCHEMICAL SOCIETY |
2020-11-01 | |
卷号 | 167期号:14页码:10 |
关键词 | TiO2 AgInS2 ZnS nanoheterojunction photoelectrochemical cathodic protection pure copper NaCl solution |
ISSN号 | 0013-4651 |
DOI | 10.1149/1945-7111/abc594 |
通讯作者 | Chen, Zhuoyuan(zychen@qdio.ac.cn) |
英文摘要 | An 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. |
资助项目 | National 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研究方向 | Electrochemistry ; Materials Science |
语种 | 英语 |
出版者 | ELECTROCHEMICAL SOC INC |
WOS记录号 | WOS:000590262600001 |
内容类型 | 期刊论文 |
源URL | [http://ir.qdio.ac.cn/handle/337002/169156] |
专题 | 海洋研究所_海洋腐蚀与防护研究发展中心 |
通讯作者 | Chen, Zhuoyuan |
作者单位 | 1.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao 266071, Peoples R China 2.Pilot Natl Lab Marine Sci & Technol Qingdao, Open Studio Marine Corros & Protect, Qingdao 266237, Peoples R China 3.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, Qingdao 266071, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
推荐引用方式 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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