Corrosion inhibition of mild steel by benzotriazole derivatives in acidic medium

被引：0
|
作者：
S. Tamil Selvi
V. Raman
N. Rajendran
机构：
[1] Anna University,Department of Chemistry
来源：
Journal of Applied Electrochemistry | 2003年 / 33卷
关键词：
benzotriazole; EIS; FTIR; mild steel; sulphuric acid;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Benzotriazole derivatives, namely, N-[1-(benzotriazolo-1-yl)alkyl] aryl amine (BTMA), N-[1-(benzotriazolo-1-yl)aryl] aryl amine (BTBA), and 1-hydroxy methyl benzotriazole (HBTA), were synthesized and their inhibition behaviour on mild steel in 0.5 M H2SO4 at room temperature was investigated by various techniques. Preliminary screening of the inhibition efficiency (IE) was carried out using weight-loss measurements. Potentiodynamic polarization and AC impedance studies were used to investigate the inhibitor mechanism. Benzotriazole derivatives were found to act as mixed type inhibitors. Among the compounds studied, HBTA exhibited the best performance giving more than 95% IE in H2SO4 solutions. The passive film characterization was done using FTIR spectrum.
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页码：1175 / 1182
页数：7
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