Experimental and molecular dynamics studies on corrosion inhibition of mild steel by 2-amino-5-phenyl-1,3,4-thiadiazole

被引：158

作者：

Tang, Yongming ^{[1
]}

Yang, Xiaoyuan ^{[1
]}

Yang, Wenzhong ^{[1
]}

Chen, Yizhong ^{[2
]}

Wan, Rong ^{[1
]}

机构：

[1] Nanjing Univ Technol, Sch Sci, Nanjing 210009, Peoples R China

[2] Jiangsu Polytech Univ, Sch Environm & Safety Engn, Changzhou 213164, Peoples R China

来源：

CORROSION SCIENCE | 2010年 / 52卷 / 01期

关键词：

Mild steel; Polarization; EIS; Modelling studies; Acid inhibition; Interface; COPPER CORROSION; ORGANIC-COMPOUNDS; ACID-SOLUTION; ADSORPTION; DERIVATIVES; IRON; SIMULATIONS; MECHANISM; IMPEDANCE; BEHAVIOR;

D O I：

10.1016/j.corsci.2009.09.010

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The corrosion inhibition of mild steel in 0.5 M H2SO4 and 1.0 M HCl by 2-amino-5-phenyl-1,3,4-thiadiazole (APT) has been studied using potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) measurements. The results show that the inhibition efficiency increases with the increase of APT concentration in both acids, and the higher inhibition efficiency is obtained in 0.5 M H2SO4. The adsorption of APT molecules on the steel surface obeys Langmuir adsorption isotherm in both acids, and occurs spontaneously. The molecular dynamics method has also been used to simulate the adsorption of ATP molecule and solvent ions on the iron surface. The results show that with the adsorption of sulfate ions the Fe + anion + APT system has the higher negative interaction energy comparing to the case of the adsorption of chloride ions. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：242 / 249

页数：8

共 59 条

[1] The effect of hexadecyl pyridinium bromide and hexadecyl trimethyl ammonium bromide on the behaviour of iron and copper in acidic solutions [J].

Abd El-Maksoud, SAA .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2004, 565 (02) :321-328

[2] Bis (benzimidazol-2-yl) disulphide: An efficient water soluble inhibitor for corrosion of mild steel in acid media [J].

Ahamad, Ishtiaque ;

Quraishi, M. A. .

CORROSION SCIENCE, 2009, 51 (09) :2006-2013

[3] Effect of some pyrimidinic Shciff bases on the corrosion of mild steel in hydrochloric acid solution [J].

Ashassi-Sorkhabi, H ;

Shaabani, B ;

Seifzadeh, D .

ELECTROCHIMICA ACTA, 2005, 50 (16-17) :3446-3452

[4]

Bastidas JM, 1996, WERKST KORROS, V47, P333

[5] The inhibitive effect of some bis-N,S-bidentate Schiff bases on corrosion behaviour of 304 stainless steel in hydrochloric acid solution [J].

Behpour, M. ;

Ghoreishi, S. M. ;

Soltani, N. ;

Salavati-Niasari, M. .

CORROSION SCIENCE, 2009, 51 (05) :1073-1082

[6] The influence of some new 2,5-disubstituted 1,3,4-thiadiazoles on the corrosion behaviour of mild steel in 1 M HCl solution:: AC impedance study and theoretical approach [J].

Bentiss, F. ;

Lebrini, M. ;

Lagrenee, M. ;

Traisnel, M. ;

Elfarouk, A. ;

Vezin, H. .

ELECTROCHIMICA ACTA, 2007, 52 (24) :6865-6872

[7] Thermodynamic characterization of metal dissolution and inhibitor adsorption processes in mild steel/2,5-bis(n-thienyl)-1,3,4-thiadiazoles/hydrochloric acid system [J].

Bentiss, F ;

Lebrini, M ;

Lagrenée, M .

CORROSION SCIENCE, 2005, 47 (12) :2915-2931

[8] Experimental and theoretical study of 3-pyridyl-substituted 1,2,4-thiadiazole and 1,3,4-thiadiazole as corrosion inhibitors of mild steel in acidic media [J].

Bentiss, F ;

Lebrini, M ;

Vezin, H ;

Lagrenée, M .

MATERIALS CHEMISTRY AND PHYSICS, 2004, 87 (01) :18-23

[9] Electrochemical and quantum chemical studies of 3,5-di(n-tolyl)-4-amino-1,2,4-triazole adsorption on mild steel in acidic media [J].

Bentiss, F ;

Lagrenée, M ;

Elmehdi, B ;

Mernari, B ;

Traisnel, M ;

Vezin, H .

CORROSION, 2002, 58 (05) :399-407

[10] The corrosion inhibition of mild steel in acidic media by a new triazole derivative [J].

Bentiss, F ;

Lagrenee, M ;

Traisnel, M ;

Hornez, JC .

CORROSION SCIENCE, 1999, 41 (04) :789-803

← 1 2 3 4 5 6 →