Schiff bases of increasing complexity as mild steel corrosion inhibitors in 2 M HCl

被引：101

作者：

Kustu, Canan ^{[1
]}

Emregul, Kaan C. ^{[1
]}

Atakol, Orhan ^{[1
]}

机构：

[1] Ankara Univ, Fac Sci, Dept Chem, TR-06100 Ankara, Turkey

来源：

CORROSION SCIENCE | 2007年 / 49卷 / 07期

关键词：

mild steel; EIS; polarization; acid inhibition;

D O I：

10.1016/j.corsci.2007.02.002

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effect of three Schiff base compounds with increasing number of coordination sites, namely, 2-{(E)-[(2-hydroxyethyl)imino]methyl} phenol (1), 2-[(E)-({2-[(2-hydroxyethyl) amino]ethyl}imino) methyl]phenol (II) and 2,2'-{iminobis[ethane-2,1-diylnitrilo(E)methylylidene]}diphenol (III) have been investigated at 298 K by weight loss measurements, potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) methods. The inhibition efficiencies obtained from all methods employed are in good agreement. Results show compound III to be the best inhibitor with a mean efficiency of 93% at 10(-2) M additive concentration. Studies showed all three compounds to act as mixed type inhibitors. (C) 2007 Elsevier Ltd. All rights reserved.

引用

页码：2800 / 2814

页数：15

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