کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6668534 | 1427210 | 2017 | 13 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Pyrimidine derivatives as novel acidizing corrosion inhibitors for N80 steel useful for petroleum industry: A combined experimental and theoretical approach
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The corrosion inhibition performance of two pyrimidine derivatives namely 5-styryl-2,7-dithioxo-2,3,5,6,7,8-hexahydropyrimido[4,5-d] pyrimidin-4(1H) one (PP-1) and 5-(2-hydroxyphenyl)-2,7-dithioxo-2,3,5,6,7,8-hexahydropyrimido[4,5-d]-pyrimidin-4(1H) one (PP-2) on N80 steel corrosion in 15% HCl has been studied using gravimetric method, electrochemical impedance spectroscopy (EIS), potentiodynamic polarization, atomic force microscopy (AFM), scanning electron microscopy (SEM), DFT, molecular electrostatic potential and Monte Carlo simulation. The corrosion inhibition efficiencies at optimum concentration (250Â mg/L) are 89.1% (PP-1) and 73.1% (PP-2) respectively at 308Â K. The corrosion inhibition efficiency increases with increase in concentration and decreases with temperature. PPs obeyed Langmuir adsorption isotherm. AFM and SEM analyses supported formation of protective film on N80 steel in presence of inhibitors. DFT and Monte Carlo simulation calculations supported experimental results.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Industrial and Engineering Chemistry - Volume 49, 25 May 2017, Pages 176-188
Journal: Journal of Industrial and Engineering Chemistry - Volume 49, 25 May 2017, Pages 176-188
نویسندگان
Jiyaul Haque, K.R. Ansari, Vandana Srivastava, M.A. Quraishi, I.B. Obot,