Electrochemical and Thermo Dynamical Investigation of 5-ethyl 4-(4-methoxyphenyl)-6-methyl-2-thioxo-1, 2, 3, 4 tetrahydropyrimidine-5-carboxylate on Corrosion Inhibition Behavior of Aluminium in 1M Hydrochloric Acid Medium

被引：0
|
作者：
Korde, Rishi [1 ]
Verma, Chandra Bhan [1 ]
Ebenso, E. E. [2 ]
Quraishi, M. A. [1 ]
机构：
[1] Banaras Hindu Univ, Dept Chem, Indian Inst Technol, Varanasi 221005, Uttar Pradesh, India
[2] North West Univ, Fac Agr Sci & Technol, Mat Sci Innovat & Modelling MaSIM Res Focus Area, ZA-2735 Mmabatho, South Africa
来源：
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE | 2015年 / 10卷 / 02期
关键词：
Acid corrosion; Aluminium; Thermodynamic parameter; potentiodynamic polarization; MILD-STEEL; ADSORPTION; EXTRACT; DERIVATIVES; LEAVES;
D O I：
暂无
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Present investigation, describe the synthesis of 5-ethyl 4-(4-methoxyphenyl)-6-methyl-2-thioxo1,2,3,4- tetrahydropyrimidine-5-carboxylate (INH) and its corrosion inhibition property on aluminium in 1M HCl using weight loss, potentiodynamic polarization and surface study methods. Tafel polarization measurements revealed that investigated inhibitor acts as mixed-type. The inhibitor exhibited the best inhibition efficiency of 83.33% at 500 ppm concentration. Adsorption of the inhibitor on aluminium surface in 1M HCl follows the Langmuir adsorption isotherm. Scanning electron microscopy (SEM) and dispersive X-ray spectroscopy (EDX) examinations was performed on inhibited and uninhibited aluminium samples to show the presence of inhibitor on aluminium surface. Some kinetic and thermodynamic parameters were also calculated to explain the nature and mechanism of adsorption.
引用
收藏
页码：1081 / 1093
页数：13
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