期刊名称：Journal of Materials and Environmental Science
印刷版ISSN：2028-2508
出版年度：2017
卷号：8
期号：6
页码：2094-2104
出版社：University of Mohammed Premier Oujda
摘要：The present investigation includes the study of corrosion inhibition effect of 5-(2-aminophenyl)-4H-3,4-diamine1,2,4-triazolehydrobromide (ADT) on carbon steel in 1M HCl by electrochemical measurements. The obtained results showed that inhibition efficiency increased with the increasing concentration of inhibitor and decreased with increase in temperature. Potentiodynamic polarization curves indicate that ADT was acting as mixed type of inhibitor. The inhibition efficiency was found to increase with ADT concentration to attain 90% with 10-3M. Langmuir adsorption isotherm model was employed to determine the equilibrium of adsorption for inhibiting process in ADT inhibitor. Nyquist plots revealed that, as the concentration of the inhibitor increases, double layer capacitance (𝐶dl) while charge transfer resistance (𝑅ct) increases. Attempt to correlate the molecular structure to quantum chemical indices was made using density functional theory (DFT).
