文献类型：期刊文献

英文题名：Enhancing Corrosion Inhibition Performance of ZnO Solid Solution by Doping Variable-Valence Rare-Earth Element Cerium

作者：Zhao, Si-Rui[1];Yuan, Xiao-Yu[1];Chen, Yi-Xiang[1];Lu, Yi[1,2];Zhang, Min[1];Liu, Jin-Ku[1,2]

机构：[1]East China Univ Sci & Technol, Sch Chem & Mol Engn, Shanghai 200237, Peoples R China;[2]Sichuan Univ Sci & Engn, Mat Corros & Protect Key Lab Sichuan Prov, Zigong 643000, Sichuan, Peoples R China

年份：2022

卷号：61

期号：1

起止页码：421

外文期刊名：INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH

收录：;EI(收录号：20220211456613);WOS:【SCI-EXPANDED(收录号:WOS:000760359500035)】；

基金：This work was supported by the National Natural Science Foundation of China (grant 21878090) and the Opening Project of Material Corrosion and Protection Key Laboratory of Sichuan Province (grant 2020CL04).

语种：英文

外文关键词：Cathodic protection - Cerium oxide - Charge transfer - Corrosion inhibitors - Epoxy resins - Rare earths - Solid solutions - Zinc oxide

摘要：Mixed-valence element-doped compounds have attracted great interest due to their unique chemical properties. Here, mixed-valence cerium-doped zinc-oxide solid solution (ZCOSS) material with a single-port hollow columnar structure was prepared under inorganic aqueous conditions, which could effectively inhibit the oxygen-absorbing corrosion of the metal. As a result of the synergistic valence cycling effect of variable-valence cerium and the molecule of zinc oxide and the adsorption effect of the hollow columnar structure, the corrosive environment was hypoxic, the charge transfer was hindered, and the generation of corrosion product was limited. In addition, the doping of cerium changed the energy band structure of the zinc oxide material, making it possible for photoelectrochemical cathodic protection of steels. Thus, the corrosion inhibition efficiency of the ZCOSS composite system is approximately 14 times that of epoxy resin and 5.5 times that of the ZnO composite system.