Adsorption and corrosion inhibition effect of 2-((5-mercapto-1,3,4-thiadiazol-2-ylimino)methyl)phenol Schiff base on mild steel

被引：197
作者：
Solmaz, Ramazan [1 ]
Altunbas, Ece [2 ]
Kardas, Gulfeza [2 ]
机构：
[1] Bingol Univ, Sci & Letters Fac, Dept Chem, TR-12000 Bingol, Turkey
[2] Cukurova Univ, Sci & Letters Fac, Dept Chem, TR-01330 Adana, Turkey
来源：
MATERIALS CHEMISTRY AND PHYSICS | 2011年 / 125卷 / 03期
关键词：
Metals; Corrosion; Adsorption; Electrochemical techniques; CARBON-STEEL; ACID-SOLUTION; 1M HCL; IRON; DERIVATIVES; BEHAVIOR; BENZIMIDAZOLE; RHODANINE; CHLORIDE; COPPER;
D O I：
10.1016/j.matchemphys.2010.09.056
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this study, the inhibition effect of 2((5-mercapto-1,3,4-thiadiazol-2-ylimino)methyl)phenol Schiff base (MTMP) on mild steel corrosion in 0.5 M HCl solution was studied. For this aim, electrochemical techniques such as potentiodynamic polarization curves, weight loss (WL), electrochemical impedance spectroscopy (EIS) and linear polarization resistance (LPR) were used. It was shown that, the MTMP Schiff base has remarkable inhibition efficiency on the corrosion of mild steel in 0.5 M HCl solution. Polarization measurements indicated that, the studied inhibitor acts as mixed type corrosion inhibitor with predominantly control of cathodic reaction. The inhibition efficiency depends on the concentration of inhibitor and reaches 97% at 1.0 mM MTMP. The remarkable inhibition efficiency of MTMP was discussed in terms of blocking of electrode surface by adsorption of inhibitor molecules through active centers. The adsorption of MTMP molecules on the mild steel surface obeys Langmuir adsorption isotherm. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：796 / 801
页数：6
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