Electrochemical and quantum chemical studies of new thiadiazole derivatives adsorption on mild steel in normal hydrochloric acid medium

被引:252
作者
Lebrini, M
Lagrenée, M
Vezin, H
Gengembre, L
Bentiss, F
机构
[1] ENSCL, CNRS, UMR 8012, Lab Cristallochim & Physicochim Solide, F-59652 Villeneuve Dascq, France
[2] Univ Sci & Tech Lille Flandres Artois, CNRS, UMR 8009, Lab Chim Organ & Macromol, F-59655 Villeneuve Dascq, France
[3] Univ Sci & Tech Lille Flandres Artois, CNRS, UMR 8010, Catalyse Heterogene & Homogene Lab, F-59655 Villeneuve Dascq, France
关键词
thiadiazoles; corrosion inhibitors; mild steel; acidic media; potential of zero charge; adsorption; theoretical calculations; cytotoxic;
D O I
10.1016/j.corsci.2004.06.001
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
In this work, a new class of thiadiazole derivatives, namely 3,5-bis(2-thienyl)-1,3,4-thiadiazole (2-TTH) and 3,5-bis(3-thienyl)-1,3,4-thiadiazole (3-TTH), have been studied as possible corrosion inhibitors for mild steel in molar hydrochloric acid (1 M HCl). Weight loss measurements, polarisation curves and AC impedance methods have been used. These studies have shown that the thiadiazole derivatives were very good inhibitors for mild steel in I M HCl. Comparison of results showed that 3-TTH was the best inhibitor. The potential of zero charge (PZC) of mild steel was studied by AC impedance method, and the mechanism of adsorption has been predicted. X-ray photoelectron spectroscopy surface analysis with thiadiazole derivatives shows that it chemisorbed at the mild steel/HCl interface. The adsorption of these inhibitors followed Langmuir's adsorption isotherm. The electronic properties of 2-TTH and 3-TTH, obtained using the AMI semi-empirical quantum chemical approach, were correlated with their experimental efficiencies using the linear resistance model (LR). These inhibitors are considered as non-cytotoxic substances. (C) 2004 Elsevier Ltd. All rights reserved.
引用
收藏
页码:485 / 505
页数:21
相关论文
共 58 条
[1]  
Ammar I.A., 1973, WERKST KORROS, V24, P702
[2]  
[Anonymous], 1981, CORROSION INHIBITORS
[3]   ESCA STUDY OF TERMINATION OF PASSIVATION OF ELEMENTAL METALS [J].
BARR, TL .
JOURNAL OF PHYSICAL CHEMISTRY, 1978, 82 (16) :1801-1810
[4]   A STUDY OF INHIBITION ACTION OF PROPARGYL ALCOHOL DURING ANODIC-DISSOLUTION OF IRON IN HYDROCHLORIC-ACID [J].
BARTOS, M ;
HACKERMAN, N .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1992, 139 (12) :3428-3433
[5]   Linear resistance model of the inhibition mechanism of steel in HCl by triazole and oxadiazole derivatives:: structure-activity correlations [J].
Bentiss, F ;
Traisnel, M ;
Vezin, H ;
Lagrenée, M .
CORROSION SCIENCE, 2003, 45 (02) :371-380
[6]   Corrosion inhibition of mild steel in 1 M hydrochloric acid by 2,5-bis(2-aminophenyl)-1,3,4-oxadiazole [J].
Bentiss, F ;
Lagrenee, M ;
Traisnel, M ;
Hornez, JC .
CORROSION, 1999, 55 (10) :968-976
[7]   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
[8]  
BENTISS F, 1999, APPL SURF SCI, V237, P152
[9]   AC-IMPEDANCE MEASUREMENTS ON ALUMINUM BARRIER TYPE OXIDE-FILMS [J].
BESSONE, J ;
MAYER, C ;
JUTTNER, K ;
LORENZ, WJ .
ELECTROCHIMICA ACTA, 1983, 28 (02) :171-175
[10]   The effect of N-(1-toluidine) salicylaldimine on the corrosion of austenitic chromium-nickel steel [J].
Bilgiç, S ;
Çaliskan, N .
APPLIED SURFACE SCIENCE, 1999, 152 (1-2) :107-114