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Physicochemical characterization and corrosion inhibition potential of 4,5- (alkylthio)-1,3-dithiole-2-thione for mild steel in 1 M hydrochloric acid
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نویسنده
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jeroundi d. ,elmsellem h. ,chakroune s. ,hammouti b. ,idouhli r. ,el hadrami e.m. ,ben-tama a. ,oudani m. ,ouzidan y. ,kandri rodi y.
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منبع
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journal of materials and environmental science - 2016 - دوره : 7 - شماره : 10 - صفحه:3895 -3905
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چکیده
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Present study describes the inhibition property of 4,5- (alkylthio) - 1,3- dithiole- 2- thione(p2) on mild steel corrosion in 1 m hcl using weight loss,electrochemical,and dft. results showed that the corrosion inhibition efficiency (e%) increases with increasing p2 concentration and attained the maximum value of 89% at 10-3 m concentration. polarization studies revealed that p2 acted as mixed-type inhibitor. electrochemical impedance spectroscopy (eis) studies suggested that the p2 inhibits mild steel corrosion by becoming adsorbate at the metallic/electrolyte surfaces. among the several tested isotherms,adsorption of the p2 on mild steel surface obeyed the langmuir adsorption isotherm. quantum chemical parameters are calculated using the density functional theory (dft) method. correlation between theoretical and experimental results is discussed.
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کلیدواژه
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Corrosion; DFT; EIS; EIS; Mild steel ,3- dithiole; TTF; Weight loss
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آدرس
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laboratoire de chimie organique appliquée,université sidi mohamed ben abdellah,faculté des sciences et techniques,route d'immouzzer,bp 2202,fès, Morocco, laboratoire de chimie analytique appliquée,matériaux et environnement (lc2ame),faculté des sciences,b.p. 717,oujda, Morocco, laboratoire de chimie organique appliquée,université sidi mohamed ben abdellah,faculté des sciences et techniques,route d'immouzzer,bp 2202,fès, Morocco, laboratoire de chimie analytique appliquée,matériaux et environnement (lc2ame),faculté des sciences,b.p. 717,oujda, Morocco, laboratory of physical chemistry of materials and environment,department of chemistry,university cadi ayyad,faculty of science semlalia,bp 2390,marrakech, Morocco, laboratoire de chimie organique appliquée,université sidi mohamed ben abdellah,faculté des sciences et techniques,route d'immouzzer,bp 2202,fès, Morocco, laboratoire de chimie organique appliquée,université sidi mohamed ben abdellah,faculté des sciences et techniques,route d'immouzzer,bp 2202,fès, Morocco, laboratoire de modélisation et calcul scientifique,université sidi mohamed ben abdellah,fès, Morocco, laboratoire de chimie organique appliquée,université sidi mohamed ben abdellah,faculté des sciences et techniques,route d'immouzzer,bp 2202,fès, Morocco, laboratoire de chimie organique appliquée,université sidi mohamed ben abdellah,faculté des sciences et techniques,route d'immouzzer,bp 2202,fès, Morocco
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Authors
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