Halogen-substituted imidazoline derivatives as corrosion inhibitors for mild steel in hydrochloric acid solution
Halogen-substituted imidazoline derivatives as corrosion inhibitors for mild steel in hydrochloric acid solution
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DOI：
10.1016/j.corsci.2014.10.032
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发表时间：
2015
影响因子：
8.3
通讯作者：
Kegui Zhang;Bing Xu;Wenzhong Yang;Xiaoshuang Yin;Y. Liu;Yizhong Chen
中科院分区：
文献类型：
--
作者：
Kegui Zhang;Bing Xu;Wenzhong Yang;Xiaoshuang Yin;Y. Liu;Yizhong Chen
采用失重法、动电位极化法和电化学阻抗法研究了2-（2-三氟甲基-4，5-二氢咪唑-1-基）乙胺（1-IM）和2-（2-三氯甲基-4，5-二氢咪唑-1-基）乙胺（2-IM）对碳钢在0.5M HCl溶液中的缓蚀作用。通过扫描电子显微镜（SEM）观察了样品的表面形貌，并通过测定固/液界面零电荷电位（Epzc）分析了缓蚀机理。理论计算结果表明，氯代化合物比氟代化合物具有更好的缓蚀性能。
Two novel imidazoline derivatives, 2-(2-trifluoromethyl-4,5-dihydro-imidazol-1-yl)-ethylamine (1-IM) and 2-(2-trichloromethyl-4,5-dihydro-imidazol-1-yl)-ethylamine (2-IM), have been investigated as corrosion inhibitors for mild steel in 0.5 M HCl solution by weight loss, potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) tests. The surface morphology of sample was presented through scanning electron microscope (SEM) and the inhibition mechanism was elucidated by measuring the potential of zero charge (Epzc) at the solid/liquid interface. Results of theoretical calculation confirm that the chloride-substituted compound shows better inhibitive performance than the fluoride-substituted one.