期刊
CORROSION SCIENCE
卷 90, 期 -, 页码 284-295出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2014.10.032
关键词
Mild steel; Weight loss; SEM; Acid corrosion
资金
- Petrochemical Wastewater as Resources and Industrialization of Zero-discharge Key Technology in Key Watersheds [2013ZX07210001]
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 HCI 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 (E-pzc) at the solid/liquid interface. Results of theoretical calculation confirm that the chloride-substituted compound shows better inhibitive performance than the fluoride-substituted one. (C) 2014 Elsevier Ltd. All rights reserved.
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