An investigation of chloride-substituted Schiff bases as corrosion inhibitors for steel

被引：135
作者：
Emregül, Kaan C. [1 ]
Kurtaran, Raif [2 ]
Atakol, Orhan [1 ]
机构：
[1] Department of Chemistry, Faculty of Sciences, University of Ankara, Tandoǧan
[2] Department of Chemistry, Faculty of Arts and Sciences, Balkesir University
来源：
Corrosion Science | 2003年 / 45卷 / 12期
关键词：
Acid media; Impedance; Inhibitor; Polarization; Schiff base; Steel;
D O I：
10.1016/S0010-938X(03)00103-3
中图分类号：
学科分类号：
摘要：
Polarization and impedance measurements were performed on steel in deaerated 5% HCl solution with and without Schiff base additives within the concentration range 1 × 10-4-5 × 10-3 mol/dm3. The Schiff base compounds used were salicylaldimine, R, N -(2-chlorophenyl)salicyaldimine, 2Cl-R, N-(3-chlorophenyl)salicyaldimine, 3Cl-R, and N-(4-chlorophenyl )salicyaldimine, 4Cl-R. It was found that when the concentration of the inhibitors were increased the inhibitor efficiencies, η, also increased with increasing surface coverage. The results indicated that the ortho-substituted (2Cl-R) compound had the highest inhibition efficiency. All the Schiff base additives studied obeyed the Langmuir isotherm. © 2003 Elsevier Ltd. All rights reserved.
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页码：2803 / 2817
页数：14
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