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：2
页码：378-388
出版社：University of Mohammed Premier Oujda
摘要：The effect of a prepared compounds, namely 5-methyl[1,2,4]triazolo[1,5-a]pyrimidin-7-ol(MTP) on the corrosion of C-steel in 1M HCl solutions has been studied using thepotentiodynamic polarization and electrochemical impedance spectroscopy (EIS)techniques. The results showed that the inhibition efficiency of the investigated compoundswas found to depend on the concentration and the nature of the inhibitor. Maximuminhibition efficiency of 94.4% has been achieved using 10-3M of MTP inhibitor.Polarization results indicated that this compound behave as mixed type inhibitor. Theadsorption of this compound on steel surface followed Langmuir adsorption isotherm. Thereactivity of investigated compounds was analyzed through quantum chemical by DFTmethod to explain the efficiency of this inhibitor as corrosion inhibitor. The Opticalmicroscope (OM) results showed the formation of a protective film on the metal surface inthe presence of this additive
关键词：Organo;bentonite; Triazolopyimidine; carbon steel; Corrosion; inhibition efficiency; EIS
