文章基本信息

标题：Evaluation of corrosion inhibitive properties of Trigonellafoenum-graecum for pure Aluminium in hydrochloric acid
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作者：Ladha D.G. ; Wadhwani P.M. ; Kumar S. 等
期刊名称：Journal of Materials and Environmental Science
印刷版ISSN：2028-2508
出版年度：2015
卷号：6
期号：5
页码：1200-1207
出版社：University of Mohammed Premier Oujda
摘要：Water extract of fenugreek seeds (FSE) were assessed for its corrosion inhibitory activit y on Aluminium (Al) in 1.0 M hydrochloric acid (HCl) solution. The inhibitive effect of fenugreek extract was studied using gravimetric, galvanostatic polarization and electrochemical impedance spectroscopy techniques. The resultsshow that presence of FSE reduces the corrosion rate of Al due to the action of phytochemical constituents such as Trigonelline and Vitexin present in it, as obtained from Liquid chromatography-Mass spectrometry (LC-MS) analysis. The corrosion process was inhibited by the adsorption of extract molecules over metal surface and was found to follow Langmuir adsorption isotherm.
关键词：Green corrosion inhibitor; Aluminum; HCl; DFT; Electrochemical and Gravimetric methods