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首页> 外文期刊>Journal of industrial and engineering chemistry >Artemisia Mesatlantica essential oil as green inhibitor for carbon steel corrosion in 1 M HCl solution: Electrochemical and XPS investigations
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Artemisia Mesatlantica essential oil as green inhibitor for carbon steel corrosion in 1 M HCl solution: Electrochemical and XPS investigations

机译：美中蒿精油作为绿色缓蚀剂，可在1 M HCl溶液中腐蚀碳钢：电化学和XPS研究

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摘要

The present work is devoted to the study of Artemisia Mesatlantica essential oil CAMEO) as green corrosion inhibitor to afford the protection of carbon steel in 1 M HCl medium at 30 degrees C. Weight loss measurements and electrochemical techniques (potentiodynamic polarization curves, and electrochemical impedance spectroscopy) were coupled with Scanning Electron Microscopy (SEM) and X-Ray Photoelectron Spectroscopy (XPS) analyses to characterize the inhibitive properties of AMEO and to determine the chemical composition of the inhibitive film formed on the steel surface. AMEO acted as an efficient inhibitor against the carbon steel corrosion in 1 M HCl, and its inhibition efficiency increased with the inhibitor concentration reaching a value of up to 92% at 3 g/L. Polarization studies showed that the AMEO was a mixed-type inhibitor. Adsorption of AMEO on the steel surface in 1 M HCl solution followed Langmuir's isotherm and the thermodynamic parameters were determined and discussed. The XPS studies showed that the inhibitive layer is composed of an iron oxide/hydroxide mixture where AMEO molecules are incorporated. (C) 2015 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
机译：目前的工作致力于研究作为绿色缓蚀剂的美中蒿精油（CAMEO），以在30°C的1 M HCl介质中提供碳钢的保护作用。失重测量和电化学技术（恒动力极化曲线和电化学阻抗）光谱法与扫描电子显微镜（SEM）和X射线光电子能谱（XPS）分析相结合，以表征AMEO的抑制性能并确定在钢表面形成的抑制膜的化学组成。 AMEO可以有效抵抗1 M HCl中的碳钢腐蚀，当3 g / L时抑制剂浓度达到92％时，其抑制效率会提高。极化研究表明，AMEO是一种混合型抑制剂。遵循Langmuir等温线，在1 M HCl溶液中AMEO在钢表面的吸附，并确定并讨论了热力学参数。 XPS研究表明，抑制层由掺有AMEO分子的氧化铁/氢氧化物混合物组成。 （C）2015韩国工业和工程化学学会。由Elsevier B.V.发布。保留所有权利。

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