J. Lazrak, N. Arrousse, E. Ech-chihbi, Y. El Atki, A. Taroq, A. Abdellaoui, F. El-Hajjaji, M. Taleb, A. Nahle
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引用次数: 9
摘要
研究了肉桂精油在1.0 M HCl溶液中对低碳钢的缓蚀作用。并对其抗氧化活性进行了分析。采用色谱-火焰电离检测器、气相色谱-质谱分析、动电位极化、电化学阻抗谱、扫描电子显微镜结合能量色散x射线能谱和失重测量等方法对其特性进行了研究，不同技术得到的结果非常一致。在298 K条件下，当浓度为1.0 g/L时，CEO的缓蚀率达到92%以上，且随着油浓度的增加而增加，但随着温度的升高而略有下降。缓蚀剂在低碳钢表面的吸附符合Langmuir等温线模型。扫描电镜和能量色散x射线能谱数据证实，在低碳钢表面形成了一层保护膜。
Valorization of Cinnamon Essential Oil as Eco-Friendly Corrosion Inhibitor for Mild Steel in 1.0 M Hydrochloric Acid Solution
The aim of the present work was to evaluate the inhibition effect of cinnamon essential oil (CEO) on mild steel corrosion in 1.0 M HCl. Its antioxidant activity was also analyzed. The CEO characteristics were studied using a chromatography-flame ionization detector, gas chromatography-mass spectrometry analysis, potentiodynamic polarization, electrochemical impedance spectroscopy, and scanning electron microscopy coupled with energy dispersive X-ray spectroscopy, and weight loss measurements, the results achieved via different techniques were in excellent agreement. The inhibition efficiency of CEO exceeded 92% at 1.0 g/L at 298 K and increased with increasing the oil concentration but decreased slightly with an increase of temperature. The adsorption of the inhibitor on the surface of mild steel followed best the Langmuir isotherm model. The scanning electron microscopy and energy dispersive X-ray spectroscopy data confirmed the formation of a protective film on the surface of the mild steel.
期刊介绍：
Surface Engineering and Applied Electrochemistry is a journal that publishes original and review articles on theory and applications of electroerosion and electrochemical methods for the treatment of materials; physical and chemical methods for the preparation of macro-, micro-, and nanomaterials and their properties; electrical processes in engineering, chemistry, and methods for the processing of biological products and food; and application electromagnetic fields in biological systems.
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