An investigation of copper corrosion inhibition in chloride solutions by benzo-hydroxamic acids

被引：66

作者：

Shaban, A ^{[1
]}

Kalman, E ^{[1
]}

Telegdi, J ^{[1
]}

机构：

[1] Tech Univ Budapest, Cent Res Inst Chem, H-1521 Budapest, Hungary

来源：

ELECTROCHIMICA ACTA | 1998年 / 43卷 / 1-2期

关键词：

copper corrosion inhibition; quartz crystal microbalance; benzo-hydroxamic acids;

D O I：

10.1016/S0013-4686(97)00244-2

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Benzo-hydroxamic acids (BHA) are investigated as potential copper corrosion inhibitors in chloride solution. The BHAs investigated were: p-chloro-benzo-hydroxamic (p-Cl-BHA), o-chloro-benzo-hydroxamic acid (o-Cl-BHA), p-nitro-benzo-hydroxamic acid (p-N-BHA) and o-methyl-benzo-hydroxamic acid (o-M-BHA). Electrochemical measurements, potentiostatic polarization and ac impedance spectroscopy were carried out to evaluate the inhibition effect of the investigated BHAs. An Electrochemical Quartz Crystal Microbalance (ECQM) was used to measure electrode corrosion and inhibitor adsorption or layer formation processes. A poorly soluble layer consisting of the inhibitor and copper corrosion products is proposed to account for the protective effect in chloride solutions. (C) 1997 Elsevier Science Ltd.

引用

页码：159 / 163

页数：5

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