Adsorption of IFKhAN-92 corrosion inhibitor on low-carbon steel from hydrochloric-acid solution

被引：15

作者：

Avdeev, Ya. G. ^{[1
]}

Luchkin, A. Yu. ^{[2
]}

Kuznetsov, Yu. I. ^{[1
]}

机构：

[1] Russian Acad Sci, Frumkin Inst Phys Chem & Electrochem, Moscow 119071, Russia

[2] Moscow State Pedag Univ, Moscow 119991, Russia

来源：

PROTECTION OF METALS AND PHYSICAL CHEMISTRY OF SURFACES | 2013年 / 49卷 / 07期

关键词：

steel; acidic corrosion; acidic corrosion inhibitors; adsorption; triazoles;

D O I：

10.1134/S2070205113070046

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Adsorption of IFKhAN-92 inhibitor on low-carbon steel from 2.0 M HCl solution was studied with the use of impedance spectroscopy. The adsorption is found to be described by the Temkin isotherm with relatively high free adsorption energy Delta G (ads) = 42 kJ/mol. The inhibitor is proposed to be chemisorbed on the surface. This hypothesis is supported by the satisfactory approximation of the adsorption kinetics by the Roginsky-Zeldovich equation and the strong protective aftereffect of the inhibitor adsorbed on the steel.

引用

页码：865 / 868

页数：4

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