期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2014
卷号：3
期号：7
页码：14601
出版社：S&S Publications
摘要：In the present investigation, three Schiff鈥檚 bases (SBs) namely 2-(2-hydroxybenzylideneamino) heptanedioic acid (SB-1), 2-(4-(dimethylamino) benzylideneamino) heptanedioic acid (SB-2) and 2-(4-hydroxy-3-methoxybenzylideneamino) heptanedioic acid (SB-3) were synthesized and their corrosion inhibition properties on mild steel in 1M HCl has been investigated using weight loss, potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) techniques. Potentiodynamic polarization measurements indicate that SBs acts as mixed type corrosion inhibitors. The morphology of the mild steel surface was examined by scanning electron microscopy (SEM), and the surface composition was evaluated using energy-dispersive X-ray spectroscopy (EDX) to show the presence of SBs on the mild steel surface. The adsorption of SBs on the mild steel surface obeys Langmuir adsorption isotherm. Some thermodynamic and kinetic parameters also determined in relevance to describe the mechanism of adsorption.
关键词：Schiff's Base; Acid corrosion; mild steel; thermodynamic parameters; EIS
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