%0 Journal Article %A Xue LUO %A Chuan JING %A Haijun HUANG %A Hongru LI %A Zhiyong WANG %A Zhenqiang WANG %A Fang GAO %A Shengtao ZHANG %T Study on highly efficient corrosion inhibition of copper by regular self-aggregates of organic molecule %D 2020 %R 10.11949/0438-1157.20191318 %J CIESC Journal %P 4733-4749 %V 71 %N 10 %X

This study presents synthesis of target ionic bistriazole rings-based molecule, 4,4'-{benzene-1,3-diylbis[(1E)-3-oxoprop-1-ene-1,3-diyl]}bis[2-(2H-benzotriazol-2-yl)phenolate] dipotassium (BDBD), through multi-step preparation route. At room temperature, the target molecule can self-assemble to produce nano-micron self-aggregates in a 3.5%(mass) NaCl / DMSO (dimethyl maple) mixed solution (volume ratio, 40/60). It is shown that the predominantly strong chemical adsorption of the formed molecular self-aggregates on the studied copper specimen leads to the yield of self-assembly film on copper surface, which is characterized by FT-IR, Raman and XPS spectroscopy. The corrosion inhibition performance of the stable self-aggregates adsorbed-copper specimens in 3.5%(mass) brine solution based on electrochemical method is surveyed. The results show that the target molecular self-aggregates can effectively inhibit copper corrosion in NaCl solution.

%U https://hgxb.cip.com.cn/EN/10.11949/0438-1157.20191318