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：4
页码：1425-1435
出版社：University of Mohammed Premier Oujda
摘要：In this paper, the synthesis and the corrosion inhibition efficiency of pyrido[2,3-b]pyrazine derivative (P1) on mild steel in acidic media were studied. Corrosion inhibition effect of (P1) on mild steel in 1 M HCl solution was investigated using weight loss measurements, electrochemical polarization and electrochemical impedance spectroscopy (EIS) methods. Results obtained reveal that P1 acts as a mixed inhibitor without modifying the hydrogen reduction mechanism. The inhibition efficiency increases with the increase of the concentration of (P1) reaches a maximum value of 93% at 10-3M. The inhibition efficiency of (P1) decreases with the rise of temperature. It was found that (P1) adsorbed on the mild steel surface according to Langmuir isotherm model. Quantum chemical studies were also carried out to propose an interpretation of the data.
