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Potentials of Nigella sativa oil as inhibition towards the corrosion of mild steel in neutral media
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نویسنده
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benabida a. ,galai m. ,cherkaoui m. ,dagdag o.
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منبع
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analytical and bioanalytical electrochemistry - 2016 - دوره : 8 - شماره : 8 - صفحه:962 -976
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چکیده
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The application of nigella sativa oil extract (ns) as a corrosion inhibitor for mild steel (ms) protection was investigated in neutral solution of 3% nacl solution has been investigated byusingweight loss method,potentiodynamic polarizationand electrochemical impedance spectroscopy (eis). polarization curves indicate that ns is a cathodic inhibitor. the inhibition efficiency of ns reached 94% at 250 ppm. however,the adsorption of thisinhibitor at the metallic surface is a physisorption type and follows the langmuir isotherm adsorption. thus the thermodynamic and kinetic parameters were calculated and discussed. © 2016 by cee (center of excellence in electrochemistry).
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کلیدواژه
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Corrosion inhibition; EIS; Mild steel; Nigella sativa oil extract; Polarization
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آدرس
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laboratory of materials,electrochemistry and environment,faculty of science,ibn tofail university,pb 133-14050, Morocco, laboratory of materials engineering and environment: modeling and application,faculty of science,university ibn tofail,bp. 133-14000, Morocco, laboratory of materials,electrochemistry and environment,faculty of science,ibn tofail university,pb 133-14050, Morocco, laboratory of polymers,radiation and environment,team of macromolecular & organic chemistry,faculty of science,university ibn tofail,bp 133, Morocco
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Authors
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