A preliminary investigation of corrosion inhibition of mild steel in 0.5 M H2SO4 by 2-amino-5-(n-pyridyl)-1,3,4-thiadiazole: Polarization, EIS and molecular dynamics simulations

被引：152

作者：

Tang, Yongming ^{[1
]}

Yang, Xiaoyuan ^{[1
]}

Yang, Wenzhong ^{[1
]}

Wan, Rong ^{[1
]}

Chen, Yizhong ^{[2
]}

Yin, Xiaoshuang ^{[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 / 05期

关键词：

Acid solutions; Mild steel; EIS; Modelling studies; Polarization; Acid inhibition; ORTHO-SUBSTITUTED ANILINES; ADSORPTION BEHAVIOR; ACID-SOLUTIONS; IRON; DERIVATIVES; HCL; COPPER; MEDIA; MONOLAYERS; MECHANISM;

D O I：

10.1016/j.corsci.2010.01.028

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The efficiency, as steel corrosion inhibitors in 0.5 M H2SO4, of two thiadiazole derivatives, 2-amino-5-(3-pyridyl)-1,3,4-thiadiazole (3-APTD) and 2-amino-5-(4-pyridyl)-1,3,4-thiadiazole (4-APTD), was investigated by polarization and electrochemical impedance spectroscopy. The protection efficiency increases with increasing inhibitors concentration, but the temperature has hardly effect on the inhibition efficiency of APTD. The adsorption of APTD on iron surface obeys the Langmuir isotherm. The experimental results show that the inhibition efficiency of 4-APTD is higher than that of 3-APTD, and the molecular dynamics (MD) simulations show that the adsorption of 4-APTD on iron surface has the higher binding energy than that of 3-APTD. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：1801 / 1808

页数：8

共 54 条

[1] Ethoxylated fatty alcohols as corrosion inhibitors for dissolution of zinc in hydrochloric acid
Abdallah, M
[J]. CORROSION SCIENCE, 2003, 45 (12) : 2705 - 2716
[2] Bastidas JM, 1996, WERKST KORROS, V47, P333
[3] The inhibitive effect of some bis-N,S-bidentate Schiff bases on corrosion behaviour of 304 stainless steel in hydrochloric acid solution
Behpour, M.
Ghoreishi, S. M.
Soltani, N.
Salavati-Niasari, M.
[J]. CORROSION SCIENCE, 2009, 51 (05) : 1073 - 1082
[4] 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
Bentiss, F.
Lebrini, M.
Lagrenee, M.
Traisnel, M.
Elfarouk, A.
Vezin, H.
[J]. ELECTROCHIMICA ACTA, 2007, 52 (24) : 6865 - 6872
[5] 2,5-bis(4-dimethylaminophenyl)-1,3,4oxadiazole and 2,5-bis(4-dimethylaminophenyl)1,3,4-thiadiazole as corrosion inhibitors for mild steel in acidic media
Bentiss, F
Traisnel, M
Vezin, H
Hildebrand, HF
Lagrenée, M
[J]. CORROSION SCIENCE, 2004, 46 (11) : 2781 - 2792
[6] 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
Bentiss, F
Lebrini, M
Vezin, H
Lagrenée, M
[J]. MATERIALS CHEMISTRY AND PHYSICS, 2004, 87 (01) : 18 - 23
[7] Influence of 2,5-bis(4-dimethylaminophenyl)-1,3,4-thiadiazole on corrosion inhibition of mild steel in acidic media
Bentiss, F
Traisnel, M
Lagrenee, M
[J]. JOURNAL OF APPLIED ELECTROCHEMISTRY, 2001, 31 (01) : 41 - 48
[8] On electrochemical techniques for interface inhibitor research
Cao, C
[J]. CORROSION SCIENCE, 1996, 38 (12) : 2073 - 2082
[9] Corrosion inhibitors for iron in hydrochloride acid solution by newly synthesised pyridazine derivatives
Chetouani, A
Aouniti, A
Hammouti, B
Benchat, N
Benhadda, T
Kertit, S
[J]. CORROSION SCIENCE, 2003, 45 (08) : 1675 - 1684
[10] THEORY OF ORGANIC CORROSION INHIBITORS - ADSORPTION AND LINEAR FREE ENERGY RELATIONSHIPS
DONAHUE, FM
NOBE, K
[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1965, 112 (09) : 886 - &

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