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Experimental,theoretical and Monte Carlo simulation of quinoline derivative as effective corrosion inhibitor for mild steel in 1 M HCl
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نویسنده
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lgaz h. ,salghi r. ,larouj m. ,elfaydy m. ,jodeh s. ,rouifi z. ,lakhrissi b. ,oudda h.
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منبع
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journal of materials and environmental science - 2016 - دوره : 7 - شماره : 12 - صفحه:4471 -4488
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چکیده
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The corrosion behaviour of 5,5'-(((2-hydroxypropane-1,3-diyl)-bis-(oxy))-bis-(methylene))-bis-(8-quinolinol) noted hbq8 towards mild steel has been studied for corrosion inhibition of mild steel in 1 m hydrochloric acid (hcl) by weight loss,tafel polarization and electrochemical impedance spectroscopy (eis) techniques. then the experimental results were confirmed by molecular dynamic simulation and dft calculations. the results showed that the inhibition efficiency (% ie) of hbq8 increased with increasing inhibitor concentration and decreased with increase in temperatures. it was found that hbq8 behaved as a mixed type inhibitor. the adsorption process of inhibitor obeyed the langmuir isotherm and the thermodynamic parameters were discussed. the results from the weight loss,electrochemical measurements and theoretical calculations are in good agreement.
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کلیدواژه
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Corrosion inhibition; DFT; Mild steel; Monte carlo simulation; Quinoline
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آدرس
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laboratory separation processes,faculty of science,university ibn tofail,po box 242,kenitra,morocco,laboratory of environmental engineering and biotechnology,ensa,ibn zohr university,po box 1136,agadir, Morocco, laboratory of environmental engineering and biotechnology,ensa,ibn zohr university,po box 1136,agadir, Morocco, laboratory separation processes,faculty of science,university ibn tofail,po box 242,kenitra, Morocco, laboratoire d'agroressources,polymères et génie des procédés,university ibn tofail,po box 242,kenitra, Morocco, department of chemistry,an-najah national university,p. o. box 7,nablus, Palestine, laboratory separation processes,faculty of science,university ibn tofail,po box 242,kenitra,morocco,laboratoire d'agroressources,polymères et génie des procédés,university ibn tofail,po box 242,kenitra, Morocco, laboratoire d'agroressources,polymères et génie des procédés,university ibn tofail,po box 242,kenitra, Morocco, laboratory separation processes,faculty of science,university ibn tofail,po box 242,kenitra, Morocco
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Authors
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