文章基本信息

标题：The roles of 3,4-diamino-5-phenyl-4H-1,2,4-triazole(TR) on the corrosion inhibition of steel in HCl media
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作者：EL Bakri Y. ; EL Aoufir Y. ; Bourazmi H. 等
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：1
页码：33-43
出版社：University of Mohammed Premier Oujda
摘要：Inhibiting effect of 3,4-diamino-5-phenyl-4H-1,2,4-triazole(TR) on carbon steel corrosion (CS) in 1M HClsolution was investigated by electrochemical impedance spectroscopy and potentiodynamic polarizationmeasurements at 303-333 K in the presence of different concentrations of inhibitor study ranging from 10-3M to10-6M. Potentiodynamic polarization study clearly revealed that the compound acted as the mixed type inhibitor.The inhibition efficiency decreases with rising temperature. Impedance measurements showed that the doublelayercapacitance decreased and charge-transfer resistance increased with increase in the inhibitor concentrationand hence increasing in inhibition efficiency. The results obtained from the different methods are in goodagreement. Adsorption followed Langmuir isotherm with negative value of ΔG°ads, suggesting a stable andspontaneous inhibition process.
关键词：Carbon steel C35; EIS; potentiodynamic polarization; Acid media.