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(Z)-2-BENZYLIDENE-2H-1,4-BENZOTHIAZIN-3(4H)-ONE AS NOVEL CORROSION INHIBITOR OF MILD STEEL CORROSION IN DIFFERENT ACIDIC MEDIA (HCL AND H2SO4): EXPERIMENTAL AND QUANTUM CHEMICAL STUDY
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نویسنده
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sebbar n.k. ,aziate g. ,elmsellem h. ,abdel-rahman i. ,ellouz m. ,el mahi b. ,hammouti b. ,zerzouf a. ,el hajjaji s. ,essassi e. m.
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منبع
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journal marocain de chimie hétérocyclique - 2017 - دوره : 16 - شماره : 1 - صفحه:84 -99
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چکیده
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Corrosion inhibition performance of (z)-2-benzylidene-2h-1,4-benzothiazin-3(4h)-one (g1) on the corrosion behavior of ms surface in 1.0 m hcl and 0.5 m h2so4 was investigated by gravimetric, analytical methods potentiodynamic polarization and electrochemical impedance spectroscopy and supported by quantum chemical calculation. the inhibition efficiency of g1 was found to increase with increasing inhibitor concentration. the results showed that g1 is a very good inhibitor for mild steel in acidic media (hcl and h2so4). the inhibition actions of this compound were discussed in view of blocking the electrode surface by means of adsorption of inhibitor molecule obeying langmuir adsorption isotherm. data obtained for inhibition efficiency from the two test techniques are in reasonably good agreement with quantum chemical parameters calculated at dft/b3lyb/6-31g (d, p).
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کلیدواژه
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4-Benzothiazine; Mild Steel; Corrosion; EIS ;Inhibitor; DFT; Fukui function
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آدرس
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mohammed v university in rabat, faculté des sciences, laboratoire de chimie organique hétérocyclique, urac 21, pôle de compétences pharmacochimie, Morocco, mohammed v university, faculty of science rabat, laboratory of spectroscopy, molecular modeling, materials and environment (ls3me), Morocco, université mohammed ier, faculté des sciences, laboratoire de chimie analytique appliquée, matériaux et environnement (lc2ame), Morocco, university of sharjah, college of sciences, department of chemistry, UAE, mohammed v university in rabat, faculté des sciences, laboratoire de chimie organique hétérocyclique, urac 21, pôle de compétences pharmacochimie, Morocco, université mohammed ier, faculté des sciences, laboratoire de chimie analytique appliquée, matériaux et environnement (lc2ame), Morocco, université mohammed ier, faculté des sciences, laboratoire de chimie analytique appliquée, matériaux et environnement (lc2ame), Morocco, université mohammed v, ens takaddoum, laboratoire de chimie organique et etudes physico-chimique, Morocco, mohammed v university, faculty of science rabat, laboratory of spectroscopy, molecular modeling, materials and environment (ls3me), Morocco, mohammed v university in rabat, faculté des sciences, laboratoire de chimie organique hétérocyclique, urac 21, pôle de compétences pharmacochimie, morocco. moroccan foundation for advanced science, innovation and research (mascir), Maroc
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Authors
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