期刊名称：Journal of Materials and Environmental Science
印刷版ISSN：2028-2508
出版年度：2016
卷号：7
期号：5
页码：1538-1548
出版社：University of Mohammed Premier Oujda
摘要：Corrosion inhibition performance of 4-(2-oxo-propylidene)-1,5-benzodiazepin-2-one (OPBz) on the corrosion behaviour of carbon steel in 2 M phosphoric acid solution was investigated by through potentiodynamic polarization technique and electrochemical impedance spectroscopy. The inhibition efficiency results of OPBz were observed to increase with increase in OPBz concentration, but decreases with increase in temperature. Polarization studies showed that the inhibiting compound is a mixed type inhibitor. The inhibition mechanism of the compound was discussed in view of its electrode blocking effect through adsorption of the inhibitor molecules. The compound obeyed the Langmuir adsorption isotherm. Thermodynamic parameters of activation were calculated and discussed. Data obtained for inhibition efficiency from the three test techniques are in reasonably good agreement.
关键词：Carbon steel; H ; 3 ; PO ; 4 ; ; Benzodiazepine derivative; Corrosion inhibition; EIS
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