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Inhibition of steel corrosion in 1M HCl by jatropha curcas oil
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نویسنده
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mokhtari o. ,hamdani i. ,chetouani a. ,lahrach a. ,el halouani h. ,aouniti a. ,berrabah m.
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منبع
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journal of materials and environmental science - 2014 - دوره : 5 - شماره : 1 - صفحه:310 -319
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چکیده
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The effects of natural jatropha curcas oil on the corrosion of steel in molar hydrochloric acid were studied via the measurements of weight loss,electrochemical and eis polarisation. the results obtained revealed that jatropha curcas oil reduced the rate of corrosion. the corrosion inhibition efficiency increased with the increase of inhibitor concentration. potentiodynamic polarisation studies clearly revealed that the presence of the natural jatropha curcas oil did not alter the mechanism of the hydrogen evolution reaction and acted a mixed inhibitor. the adsorption of jatropha curcas oil on the steel surface in molar in hydrochloric acid obeys to the frumkin adsorption isotherm model.
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کلیدواژه
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Acid; Corrosion; Extraction; Inhibition; Jatropha curcas oil; Natural substance; Steel
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آدرس
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laboratoire de géo-ressources et environnement,faculté des sciences et techniques, Morocco, lcae-urac18,faculté des sciences,université mohammed premier,b.p. 717, Morocco, lcae-urac18,faculté des sciences,université mohammed premier,b.p. 717,m-60000 oujda,morocco,laboratoire de chimie physique,centre régionale des métiers de l'education et de formation crmef,région de l'orientale, Morocco, laboratoire de géo-ressources et environnement,faculté des sciences et techniques, Morocco, département de biologie,faculté des sciences,université mohammed premier, Morocco, lcae-urac18,faculté des sciences,université mohammed premier,b.p. 717, Morocco, laboratoire du chimie du solide minéral et analytique,faculté des sciences,université mohammed premier,b.p. 717, Morocco
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Authors
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