文章基本信息

标题：Cinnamon essential oil as a novel eco-friendly corrosion inhibitor of copper in 0.5 M Sulfuric Acid medium
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作者：Dahmani K. ; Galai M. ; Cherkaoui M. 等
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：5
页码：1676-1689
出版社：University of Mohammed Premier Oujda
摘要：The oil of Cinnamon essential (CiO), analyzed by gas chromatography (GC) and gas chromatography–mass spectrometry (GC–MS) was made. The analyzed oils consist mainly Trans-cinnamaldehyde (46.30%), δ-cadinene (8.16%) and β-Cubebene (5.20%) being the major constituents, on the corrosion of copper in aqueous 0.5 M sulfuric acid studied by electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization. EIS and polarization measurements showed that the dissolution process of copper occurs under diffusion control. Potentiodynamic polarization curves indicated that the essential oil extract behaves as cathodic-type inhibitor. The corrosion rates of copper and the inhibition efficiencies of the extract were calculated. The results obtained show that the extract solution of the essential oil could serve as an effective inhibitor for the corrosion of copper in sulphuric acid media.
关键词：Cinnamon essential oil; Green corrosion inhibitor; Copper; H2SO4