期刊
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
卷 21, 期 -, 页码 1328-1339出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jiec.2014.05.049
关键词
Mild steel; DFT; Vinylimidazole; Allylimidazole; Molecular dynamics simulations
资金
- Center of Research Excellence in Corrosion (CORE-C), King Fand University of Petroleum and Minerals (KFUPM), Saudi Arabia
Corrosion inhibition potentials of two imidazole derivatives namely, vinylimidazole (VI) and allylimidazole (AI) for carbon steel in 1 M HCl at 25 degrees C were predicted theoretically using quantum chemical calculations and molecular dynamics (MD) simulations. DFT calculations indicated that VI is more reactive towards steel surface than AI. Equilibruim adsorption behaviour of VI and AI molecules on Fe2O3 (0 1 0) surface was investigated using molecular dynamics (MD) simulations. The equilibrium adsorption energy followed the order: VI>AI. Theoretical conclusions were subsequently validated experimentally using potentiodynamic polarization, linear polarization resistance, electrochemical impedance spectroscopy, and surface analytical techniques (SEM and AFM). (C) 2014 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
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