Investigation of the Corrosion-Resistant Properties of Citrus Aurantium Essential Oil in 1 M HCl

被引：0
作者：
H. Bendaha
H. Elmsellem
A. Aouniti
M. Mimouni
A. Chetouani
B. Hammouti
机构：
[1] Mohammed I University,Materials Chemistry Laboratory, Science Faculty
[2] Mohammed I University,Applied Chemistry and Environment Laboratory, Science Faculty
[3] Regional Center for Careers Education and Training,Physical Chemistry Laboratory
[4] Oriental Region,undefined
来源：
Materials Science | 2016年 / 52卷
关键词：
mild steel; citrus aurantium; oil; HCl; corrosion; green inhibitor; gas-chromatography–massspectrometry;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The fresh peel essential oils of citrus aurantium from Eastern Morocco (Oujda) were analyzed by the gas chromatography and gas-chromatography–mass-spectrometry. The analyzed essential oil mainly consists of monoterpene hydrocarbons (54.38%) with limonene (52.67%) as the major constituent. The effect of addition of citrus aurantium essential oil on the corrosion of steel in a 1 M HCl solution was studied by the weight-loss measurements, potentiodynamic polarization, and the electrochemical impedance spectroscopy (EIS) measurements. The inhibition efficiency was found to increase with the inhibitor content to attain 95% (for 5 g/liter). The data obtained from the EIS studies were analyzed to determine the model inhibition process by using the appropriate equivalent circuit models. The inhibition efficiencies obtained by different methods are in good agreement. It was discovered that the adsorption of natural products on the steel surface obeys the Langmuir’s adsorption isotherm.
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页码：123 / 131
页数：8
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