Inhibition mechanism of imidazoline derivative inhibitor for q235 steel in saltwater saturated with CO2

被引：17

作者：

Liu Fu-Guo ^{[1
]}

Du Min ^{[1
]}

Zhang Jing ^{[1
]}

Qiu Meng ^{[1
]}

机构：

[1] Ocean Univ China, Coll Chem & Chem Engn, Minist Educ, Key Lab Marine Chem Theory & Technol, Qingdao 266100, Shandong Prov, Peoples R China

来源：

ACTA PHYSICO-CHIMICA SINICA | 2008年 / 24卷 / 01期

关键词：

EIS; potentiodynamic polarization; corrosion inhibitor; Langmuir isotherm; quantum chemistry;

D O I：

10.3866/PKU.WHXB20080124

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Laboratory investigations (polarization and electrochemical impedance spectroscopy) were performed in order to assess the effectiveness and the inhibition mechanism of new synthesized imidazoline derivative inhibitor to prevent corrosion of steel in saltwater saturated with carbon dioxide. The inhibitor efficiencies and thermodynamic parameters were calculated. The inhibition efficiency increased with the increase in inhibitor concentration, but increased then decreased with temperature. It was seen that the adsorption of imidazoline derivative on steel fitted the Langmuir isotherm equation. The electrochemical results have also been supplemented by quantum chemical analysis.

引用

页码：138 / 142

页数：5

共 21 条

[1] Bailey S, 1997, BRIT CORROS J, V32, P49
[2] The inhibition of corrosion of mild steel in 0.5 M sulfuric acid solution in the presence of benzyl triphenyl phosphonium bromide
Bhrara, Kalpana
Singh, Gurmeet
[J]. APPLIED SURFACE SCIENCE, 2006, 253 (02) : 846 - 853
[3] On electrochemical techniques for interface inhibitor research
Cao, C
[J]. CORROSION SCIENCE, 1996, 38 (12) : 2073 - 2082
[4] MECHANISTIC STUDIES OF THE CORROSION-INHIBITOR OLEIC IMIDAZOLINE
EDWARDS, A
OSBORNE, C
WEBSTER, S
KLENERMAN, D
JOSEPH, M
OSTOVAR, P
DOYLE, M
[J]. CORROSION SCIENCE, 1994, 36 (02) : 315 - 325
[5] Corrosion inhibition of mild steel by the new class of inhibitors [2,5-bis(n-pyridyl)-1,3,4-thiadiazoles] in acidic media
El Azhar, M
Mernari, B
Traisnel, M
Bentiss, F
Lagrenée, M
[J]. CORROSION SCIENCE, 2001, 43 (12) : 2229 - 2238
[6] Time dependence of inhibiting effect of amidoamines in CO2 saturated chloride solutions
Esih, I
Soric, T
Pavlinic, Z
[J]. BRITISH CORROSION JOURNAL, 1998, 33 (04): : 309 - 314
[7] Understanding the inhibiting properties of 3-amino-1,2,4-triazole from fractal analysis
García-Ochoa, E
Genesca, J
[J]. SURFACE & COATINGS TECHNOLOGY, 2004, 184 (2-3): : 322 - 330
[8] The effect of propargylic alcohol on the corrosion inhibition of low alloy CrMo steel in sulphuric acid
Gojic, M
[J]. CORROSION SCIENCE, 2001, 43 (05) : 919 - 929
[9] Effect of flow velocity and entrained sand on inhibition performances of two inhibitors for CO2 corrosion of N80 steel in 3% NaCl solution
Jiang, X
Zheng, YG
Ke, W
[J]. CORROSION SCIENCE, 2005, 47 (11) : 2636 - 2658
[10] Inhibition of carbon dioxide corrosion of mild steel by imidazolines and their precursors
Jovancicevic, V
Ramachandran, S
Prince, P
[J]. CORROSION, 1999, 55 (05) : 449 - 455

← 1 2 3 →