مشخصات پژوهش

عنوان	Effect of Thyme Leaves Hydroalcoholic Extract on Corrosion Behavior of API 5L Carbon Steel in 0.5 M H2SO4
نوع پژوهش	مقاله چاپ‌شده در مجلات علمی
کلیدواژه‌ها	API 5L carbon steel, Thyme Extract, Polarization, EIS, Temkin isotherm
چکیده	In this study, the effect of Thyme leaves hydroalcoholic extract (as a green corrosion inhibitor) on corrosion behavior of API 5L carbon steel in 0.5 M H2SO4 solution was investigated by Tafel polarization and electrochemical impedance spectroscopy (EIS). Tafel polarization plots showed that Thyme is a mixed inhibitor. Also, Tafel polarization and EIS results indicated that the inhibition efficiency increases with increasing Thyme leaves hydroalcoholic extract concentration to attain 89% at 12 g/L. Impedance parameters change with increasing concentration of extract shows that the adsorption of this extract on the steel surface will form a protective layer on the steel surface. Moreover, Temkin isotherm revealed that Thyme physically is absorbed on API 5L carbon steel surface in 0.5 M H2SO4 solution. The adsorption isotherm was obtained -17.86 kJ mol-1.
پژوهشگران	آرش فتاح الحسینی (نفر اول)، بهناز همراهی (نفر دوم)