Corrosion protection on copper by imidazole and its derivatives

被引：54

作者：

Gasparac, R ^{[1
]}

Stupnisek-Lisac, E ^{[1
]}

机构：

[1] Univ Zagreb, Fac Chem Engn & Technol, Zagreb, Croatia

来源：

CORROSION | 1999年 / 55卷 / 11期

关键词：

copper; electrochemical impedance spectroscopy; hydrochloric acid; imidazoles; inhibition; scanning electron microscopy;

D O I：

10.5006/1.3283940

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The efficiency of imidazole and its derivatives (4-methylimidazole, 4-methyl-5-hydroxymethylimidazole, 1 phenyl-4-methylimidazole, 1-[p-toly]-4-methylimidazole) for corrosion inhibition of copper in 0.5 M hydrochloric acid (HCl) was investigated. Corrosion inhibition was studied using impedance spectroscopy and potentiodynamic methods. Polarization resistances calculated from the alternating current (AC) impedance measurements were in good agreement with those obtained from direct current (DC) polarization measurements. Copper samples also were analyzed by scanning electron microscopy (SEM) and x-ray microanalysis. These studies showed that 1-(p-tolyl)-4 methylimidazole had the best inhibitory efficiency.

引用

页码：1031 / 1039

页数：9

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