文献类型：期刊文献

英文题名：2-Amino-5-(4-pyridinyl)-1,3,4-thiadiazole monolayers on copper surface: Observation of the relationship between its corrosion inhibition and adsorption structure

作者：Pan, Ying-Cheng[1,2,3];Wen, Ying[1];Guo, Xiao-Yu[1];Song, Ping[1];Shen, Shu[1];Du, Yi-Ping[2,3];Yang, Hai-Feng[1]

机构：[1]Shanghai Normal Univ, Dept Chem, Shanghai 200234, Peoples R China;[2]E China Univ Sci & Technol, Shanghai Key Lab Funct Mat, Shanghai 200237, Peoples R China;[3]E China Univ Sci & Technol, Res Ctr Anal & Test, Shanghai 200237, Peoples R China

年份：2013

卷号：73

起止页码：274

外文期刊名：CORROSION SCIENCE

收录：;EI(收录号：20132316396930);WOS:【SCI-EXPANDED(收录号:WOS:000320736900029)】；

基金：This work is supported by the National Natural Science Foundation of China (Grant No. 21073121), and Key Laboratory of Resource Chemistry of Ministry of Education.

语种：英文

外文关键词：Copper; EIS; Polarization; Raman spectroscopy; Neutral inhibition

摘要：Corrosion inhibition behavior of 2-amino-5-(4-pyridinyl)-1,3,4-thiadiazole (4-APTD) monolayers on copper surface were investigated by electrochemical impedance spectroscopy (EIS), electrochemical polarization measurement and surface-enhanced Raman scattering (SERS) experiment. The EIS mechanism of the copper surface with 4-APTD monolayers fitted to the mode of R(Q(R(QR))). The electrochemical polarization measurements indicated high inhibition efficiency of about 90.4%. SERS results suggested that 4-APTD molecules anchored at copper surface in a tilted orientation directly via N-3 and N-12 atoms. The transition adsorption states of 4-APTD on the copper surface were observed as the potential applied from 0 to -1.6 V vs. SCE. (C) 2013 Elsevier Ltd. All rights reserved.