期刊名称：Journal of Materials and Environmental Science
印刷版ISSN：2028-2508
出版年度：2017
卷号：8
期号：2
页码：636-647
出版社：University of Mohammed Premier Oujda
摘要：The inhibition effects of 4-decyl-2H-benzo[b][1,4]thiazin-3(4H)-one (P1) and 2-benzylidene-4-decyl-2H-benzo[b][1,4]thiazin-3(4H)-one (P2) on mild steel corrosionin 1M HCl were studied in detail via gravimetric measurement, electrochemicalimpedance spectroscopy, potentiodynamic polarization and theoretical calculations.It was shown that P1 and P2 act were good corrosion inhibitors for mild steelprotection. The inhibition efficiency of both the inhibitors increased with increasingconcentration of inhibitor. Among them, P1 shows the highest inhibition efficiencyof 97.7% at 10-3 M. The high inhibition efficiencies were attributed to the simpleblocking effect by adsorption of inhibitor molecules on the steel surface. Theinhibition action of the compound was assumed to occur via adsorption on the steelsurface through the active centers in the molecule following Langmuir isothermmodel. The relationship between inhibition efficiency and molecular structures ofinhibitors was discussed using quantum chemical parameters.
