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Corrosion inhibition of carbon steel in 1M HCl by 1,5-benzodiazepine derivative: Experimental and molecular modeling studies
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نویسنده
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el aoufir y. ,sebhaoui j. ,lgaz h. ,el bakri y. ,zarrouk a. ,bentiss f. ,guenbour a. ,essassi e.m. ,oudda h.
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منبع
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journal of materials and environmental science - 2017 - دوره : 8 - شماره : 6 - صفحه:2161 -2173
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چکیده
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1,5-benzodiazepine derivative namely,4z-(2-oxopropyl)-1,3-bis(prop-2-yn-1-yl)-2,3,4,5-tetrahydro-1,5-benzodiazepin-2-one (bzd-1) has been evaluated as corrosion inhibitor for carbon steel in 1m hcl acid by electrochemical impedance spectroscopy (eis) and potentiodynamic curves techniques. the obtained results showed that bzd-1 is an efficient corrosion inhibitor and an inhibition efficiency of 97% was reached with 1×10-3 m of bzd-1. the protection efficiency increased with increasing inhibitor concentration,but the temperature has significantly effect on the inhibition efficiency of bzd-1. tafel polarization studies revealed that bzd-1 is mixed type inhibitor. the adsorption of bzd-1 on the surface of carbon steel obeyed the langmuir adsorption isotherm. the adsorption behavior of the bzd-1 on fe (110) surface was investigated by monte carlo simulations to verify its corrosion inhibition steel efficacy. the adsorption energy between inhibitor and carbon steel has been calculated by monte carlo simulations. © 2017,university of mohammed premier oujda morocco.
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کلیدواژه
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5-Benzodiazepine derivative; Carbon steel; Corrosion inhibition; Electrochemical techniques; Hydrochloric acid; Simulation
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آدرس
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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, laboratoire de chimie organique heterocyclique,urac 21,pôle de compétence pharmacochimie,université mohammed v,faculté des sciences,rabat, Morocco, lc2ame-urac 18,faculty of science,first mohammed university,po box 717,oujda, Morocco, laboratoire de catalyse et de corrosion des matériaux (lccm),faculté des sciences,université chouaib doukkali,bp 20,el jadida, 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
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Authors
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