Effect of Alkyl Chain Length on Adsorption Behavior and Corrosion Inhibition of Imidazoline Inhibitors
- سال انتشار: 1397
- محل انتشار: Iranian Journal of Chemistry and Chemical Engineering، دوره: 37، شماره: 5
- کد COI اختصاصی: JR_IJCCE-37-5_010
- زبان مقاله: انگلیسی
- تعداد مشاهده: 58
نویسندگان
Abadan Faculty of Petroleum Engineering, Petroleum University of Technology, Abadan, I.R. IRAN
Department of Mechanical Engineering, Higher Education Complex of Bam, Bam, I.R. IRAN
Department of Chemistry, Institute of Science, Cumhuriyet University, ۵۸۱۴۰ Sivas, TURKEY
چکیده
Inhibition performances of imidazoline derivatives with different alkyl chain length for carbon steel in H۲S acid solutions has been studied by polarization curves, AC impedance measurements, current transient, Atomic Force Microscopy (AFM) and Density Functional Theory (DFT) techniques. Results showed that the inhibition occurs through adsorption of the inhibitors molecules on the metal surface. The inhibition efficiency was found to increase with increasing inhibitor’s concentration. Polarization data indicated that these compounds act as mixed-type inhibitors. Computational studies of investigated inhibitors were performed by using Hartree–Fock (HF) and M۰۶۲X methods which are ab-initio and DFT methods with ۶-۳۱G basis set in the gas phase and water. Calculated results indicate that the inferred inhibition efficiency increases with the increasing alkyl chain length, which is well in accordance with reported experimental results.کلیدواژه ها
metals, organic compounds, ab initio calculations, Corrosion, computer modelling and simulationاطلاعات بیشتر در مورد COI
COI مخفف عبارت CIVILICA Object Identifier به معنی شناسه سیویلیکا برای اسناد است. COI کدی است که مطابق محل انتشار، به مقالات کنفرانسها و ژورنالهای داخل کشور به هنگام نمایه سازی بر روی پایگاه استنادی سیویلیکا اختصاص می یابد.
کد COI به مفهوم کد ملی اسناد نمایه شده در سیویلیکا است و کدی یکتا و ثابت است و به همین دلیل همواره قابلیت استناد و پیگیری دارد.