Inhibition of mild steel corrosion in acidic medium by some cationic surfactants

被引：42
|
作者：
Aiad, Ismail [1 ]
El-Sukkary, Mohamed M. [1 ]
Soliman, E. A. [1 ]
El-Awady, Moshira Y. [1 ]
Shaban, Samy M. [1 ]
机构：
[1] Ain Shams Univ, Fac Sci, Petrochem Dept, Egyptian Petr Res Inst, Cairo, Egypt
来源：
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY | 2014年 / 20卷 / 05期
关键词：
Steel; Weight loss; Potentiodynamic polarization; Impedance; Adsorption isotherm; SCHIFF-BASE COMPOUNDS; CHLORIDE-ION; ALUMINUM; HCL; BENZIMIDAZOLE; DERIVATIVES; BEHAVIOR; SULFATE; IRON;
D O I：
10.1016/j.jiec.2013.12.045
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The inhibition effect of some cationic surfactants on the corrosion of mild steel in 1.0 M HCl solution was studied by weight loss at 25-70 degrees C while potentiodynamic polarization and electrochemical impedance were used at 25 degrees C. The results showed that all synthesized inhibitors were good inhibitors and their inhibition efficiencies were significantly increased by increasing both the concentration and temperature. Polarization curves revealed that the studied inhibitors act as mixed-type of inhibitors. Double-layer capacitances decrease with respect to the blank solution when these inhibitors added due to adsorption of these inhibitors on the steel surface. The adsorption of these inhibitors was found to obey Villamil adsorption model. (C) 2013 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
引用
收藏
页码：3524 / 3535
页数：12
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