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Anti-corrosion properties of niaouli essential oil for tinplate in 3 %NaCl medium
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نویسنده
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nabah r. ,lgaz h. ,zarrok h. ,larouj m. ,benhiba f. ,ourrak k. ,cherkaoui m. ,zarrouk a. ,touir r. ,oudda h.
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منبع
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journal of materials and environmental science - 2017 - دوره : 8 - شماره : 10 - صفحه:3730 -3739
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چکیده
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Niaouli essential oil (neo) was analyzed by gc and gc/ms and its mainly compound is the eucalyptol (60.01%). the corrosion inhibitionof niaouli essential oil (neo) fortinplate has been studied in 3% nacl at ph = 2 by tafel polarization and electrochemical impedance spectroscopy (eis) techniques. the results showed that the inhibition efficiency of neo increaseswith concentration and decreases with temperature. it was found that neo behavesas cathodic inhibitor at the concencetration rage 0.1-0.4 g l-1 and a mixed type inhibitor at 0.5 g l-1. eis showed that the inhibitor addition decreases the double-layer capacitance and increases the polarization resistance. the adsorption process of neo obeyed the langmuirisotherm. © 2017,university of mohammed premier oujda morocco.
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کلیدواژه
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Corrosion inhibition; Electrochemical techniques; NaCl; Niaouli essential oil; Tinplate
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آدرس
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laboratory of separation processes,faculty of science,university ibntofail,po box 242,kenitra,morocco,laboratory of matériaux,electrochimie and environnement,faculty of science,university ibntofail,po box 242,kenitra, Morocco, laboratory of separation processes,faculty of science,university ibntofail,po box 242,kenitra, Morocco, laboratory of separation processes,faculty of science,university ibntofail,po box 242,kenitra, Morocco, laboratory of separation processes,faculty of science,university ibntofail,po box 242,kenitra, Morocco, laboratory of separation processes,faculty of science,university ibntofail,po box 242,kenitra, Morocco, laboratory of chimie physique,faculty of sciences,university moulay ismail,meknès, Morocco, laboratory of matériaux,electrochimie and environnement,faculty of science,university ibntofail,po box 242,kenitra, Morocco, lc2ame,faculty of science,first mohammed university,po box 717,oujda, Morocco, laboratoire d'ingénierie des matériaux et d'environnement,modelisation et application,faculté des sciences,université ibn tofail,bp 133,kénitra,morocco,centre régional des métiers de l'education et de la formation (crmef),avenue allal al fassi,madinat al irfane bp 6210,rabat, Morocco, laboratory of separation processes,faculty of science,university ibntofail,po box 242,kenitra, Morocco
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Authors
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