Electrochemical studies on the effect of (2E)-3-amino-2-phenylazo-but-2-enenitrile and its derivative on the behaviour of copper in nitric acid

被引：31

作者：

Abd El-Maksoud, S. A.

Hassan, H. H.

机构：

[1] Suez Canal Univ, Fac Educ, Dept Chem, Al Arish, Sinai, Egypt

[2] Ain Shams Univ, Fac Sci, Dept Chem, Cairo, Egypt

来源：

MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION | 2007年 / 58卷 / 05期

关键词：

D O I：

10.1002/maco.200604021

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The objective of this work is to provide additional insight on the influence of (2E)-3-amino-2-phenylazo-but-2-enenitrile and its derivative as corrosion inhibitors for copper in 0. 5 M HNO3. Electrochemical techniques (potentiodynamic polarization, polarization resistance and impedance spectroscopy) as well as weight loss measurements have been employed to study the corrosion inhibition. The investigated compounds have shown inhibition efficiency in 0.5 M HNO3. Inhibition efficiency of these compounds has been found to vary with the concentrations of the compounds. The adsorption of these compounds on the copper surface from the acid solution has been found to obey Langmuir adsorption isotherm. The results revealed that the compounds are mixed type inhibitors. The effect of temperature on the inhibition efficiency was studied.

引用

页码：369 / 375

页数：7

共 48 条

[1] The effect of hexadecyl pyridinium bromide and hexadecyl trimethyl ammonium bromide on the behaviour of iron and copper in acidic solutions [J].