文献类型：期刊文献

英文题名：Surface coordination and excellent anticorrosion performance of strontiumapatite nanocomposite

作者：Liu, Xiu-Rui[1];Miao, Min[1];Zhang, Jing-Yu[1];Liu, Jin-Ku[1];Zhang, Xian-Mei[2];Wang, Xiao-Gang[3]

机构：[1]East China Univ Sci & Technol, Sch Chem & Mol Engn, Key Lab Adv Mat, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Sch Sci, Shanghai 200237, Peoples R China;[3]Tongji Univ, Dept Chem, Shanghai 200092, Peoples R China

年份：2019

卷号：80

起止页码：656

外文期刊名：JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY

收录：;EI(收录号：20193707416893);WOS:【SCI-EXPANDED(收录号:WOS:000501658800074)】；

基金：This work was supported by the National Natural Science Foundation of China (Grants 21878090 and 11675053) and the Opening Project of Material Corrosion and Protection Key Laboratory of Sichuan province (Grant 2017CL15).

语种：英文

外文关键词：Self-heating; Strontium apatite; Synergistic anticorrosion; Benzotriazole

摘要：A mass-produced, simple and scalable self-heating-based method for the manufacture of surface coordination strontiumapatite (SP) nanocomposite with excellent corrosion resistance is proposed. The reaction heat released from the formation of SP material increases the solubility of benzotriazole (BTA) which achieves reasonable distribution of system energy. The BTA is firmly adhered on the SP by Sr-N coordination bond, which acts as barrier impeding on the penetration of the corrosive medium. Scan electron microscopy (SEM) and X-ray diffraction (XRD) were employed to characterize coating morphology and chemical composition. Meanwhile, electrochemical impedance spectroscopy (EIS) data show that the resultant resistance of strontiumapatite/benzotriazole (SPB) nanocomposite coating was 3.02 x 10(4) Omega cm(2), which was improved by 601.8% compared with SP material. The improvement of corrosion performance is attributed to the synergistic anticorrosion mechanism that includes the shielding effect, extension of charge transfer paths and formation of multiple passivation films. The method for organic and inorganic synergistic material provides ideas for the design and synthesis of anticorrosive materials. (C) 2019 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.