|
|
|
|
Understanding the adsorption of benzimidazole derivative as corrosion inhibitor for carbon steel in 1 M HCl: Experimental and theoretical studies
|
|
|
|
|
|
|
|
نویسنده
|
el aoufir y. ,el bakri y. ,lgaz h. ,zarrouk a. ,salghi r. ,warad i. ,ramli y. ,guenbour a. ,essassi e.m. ,oudda h.
|
|
منبع
|
journal of materials and environmental science - 2017 - دوره : 8 - شماره : 9 - صفحه:3290 -3302
|
|
چکیده
|
The inhibition performance of 5-methoxy-2-[(4-methoxy-3,5-dimethyl-pyridin-2-yl)methylsulfinyl]benzimidazole (msb) on the corrosion of carbon steel in 1m hcl was investigated using electrochemical impedance spectroscopy (eis) and potentiodynamic measurements at various concentrations. it was found that tested compound has high inhibitory efficiency against the corrosion of carbon steel in hcl solution. the inhibition efficiency increases with concentration and decreases a little with the rises of the temperature from 303 to 333 k. results showed that msb shows maximum inhibition efficiency of 95% at 10-3 m concentration. this compound is classified as the mixed type corrosion inhibitor with predominant control of cathodic reaction. the adsorption of benzimidazole derivative on the surface of carbon steel obeyed the isotherm of langmuir adsorption. quantum chemical calculations were employed to give further insight into the mechanism of inhibition action of msb. © 2017,university of mohammed premier oujda morocco.
|
|
کلیدواژه
|
Benzimidazole derivative Electrochemical techniques; Carbon steel; DFT; Hydrochloric acid Corrosion inhibition
|
|
آدرس
|
laboratory of separation processes,faculty of sciences,university ibn tofail,kenitra,morocco,laboratory of nanotechnology,materials and environment,faculty of sciences,mohammed v university,rabat, Morocco, laboratoire de chimie organique heterocyclique,urac 21,pôle de compétence pharmacochimie,université mohammed v,faculté des sciences,rabat, Morocco, laboratory of separation processes,faculty of sciences,university ibn tofail,kenitra,morocco,laboratory of applied chemistry and environment,ensa,ibn zohr university,po box 1136,agadir, Morocco, lc2ame,faculté des sciences,université mohammed 1 er,oujda, Morocco, laboratory of applied chemistry and environment,ensa,ibn zohr university,po box 1136,agadir, Morocco, department of chemistry,an-najah national university,p.o. box 7,nablus, Palestine, medicinal chemistry laboratory,faculty of medicine and pharmacy,mohammed v university rabat,rabat, Morocco, laboratory of nanotechnology,materials and environment,faculty of sciences,mohammed v university,rabat, Morocco, laboratoire de chimie organique heterocyclique,urac 21,pôle de compétence pharmacochimie,université mohammed v,faculté des sciences,rabat, Morocco, laboratory of separation processes,faculty of sciences,university ibn tofail,kenitra, Morocco
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Authors
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|