标题：Physicochemical Characterization and Corrosion Inhibition Potential of 4, 5-(alkylthio)-1, 3-dithiole-2- thione for mild steel in 1 M hydrochloric acid
期刊名称：Journal of Materials and Environmental Science
印刷版ISSN：2028-2508
出版年度：2016
卷号：7
期号：10
页码：3895-3904
出版社：University of Mohammed Premier Oujda
摘要：Present study describes the inhibition property of 4, 5- (alkylthio) - 1, 3- dithiole- 2- thione(P2) on mild steel corrosion in 1 M HCl using weight loss, electrochemical, and DFT. Results showed that the corrosion inhibition efficiency (E%) increases with increasing P2 concentration and attained the maximum value of 89% at 10 -3 M concentration. Polarization studies revealed that P2 acted as mixed-type inhibitor. Electrochemical impedance spectroscopy (EIS) studies suggested that the P2 inhibits mild steel corrosion by becoming adsorbate at the metallic/electrolyte surfaces. Among the several tested isotherms, adsorption of the P2 on mild steel surface obeyed the Langmuir adsorption isotherm. Quantum chemical parameters are calculated using the density functional theory (DFT) method. Correlation between theoretical and experimental results is discussed.
