Electrochemical studies of Carum Carvi plant as corrosion inhibitor for mild steel in 1M HCl solution

被引：0
作者：
El Hattabi, L. [1 ]
Costa, J. [2 ]
Desjobert, J. M. [2 ]
Guenbour, A. [1 ]
Tabyaoui, M. [1 ]
机构：
[1] Univ Mohammed 5, Dept Chem, Lab Nanotechnol Mat & Environm, Fac Sci, Av Ibn Batouta,BP 1014, Rabat, Morocco
[2] Univ Corse, UMR CNRS 6134, Fac Sci & Tech, Lab Chim Prod Nat, Corsica, France
来源：
MOROCCAN JOURNAL OF CHEMISTRY | 2016年 / 4卷 / 04期
关键词：
Corrosion; Inhibitor; Mild steel; Essential oil; Langmuir isotherm; Adsorption;
D O I：
暂无
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The application of Carum Carvi's essential oil in a corrosion inhibitor for mild steel (MS) protection was investigated in 1 M HCl solution. Essential oil from Carum Carvi was obtained by Clevenger type water distillation. The major compounds in these essential oils was identified using gas chromatography-mass Spectrometry: Apiol dill ( 5,6%), Limonene (15,3%), Carvone (13,3 %) and p-Cymene (11,3%). The electrochemical impedance spectroscopy and potentiodynamic measurements were used at various concentrations and temperatures. The oil 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 88% at 3 g/L. Polarization studies showed that the oil was a mixed-type inhibitor. Adsorption of oil on the steel surface in 1 M HCl solution followed Langmuir's isotherm and the thermodynamic parameters were determined and discussed.
引用
收藏
页码：862 / 875
页数：14
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