An electrochemical and analytical approach to the inhibition mechanism of an amino-alcohol-based corrosion inhibitor for reinforced concrete

被引：122
作者：
Jamil, HE
Montemor, MF
Boulif, R
Shriri, A
Ferreira, MGS
机构：
[1] Inst Super Tecn, Dep Chem Eng, P-1049001 Lisbon, Portugal
[2] Univ Kenitra, Kenitra, Morocco
[3] CERPHOS, Lab Rech & Mat, Grp OCP, Casablanca, Morocco
[4] Univ Aveiro, Dept Ceram & Glass Engn, Aveiro, Portugal
来源：
ELECTROCHIMICA ACTA | 2003年 / 48卷 / 23期
关键词：
corrosion; inhibitor; electrochemical impedance; chloride; reinforced concrete;
D O I：
10.1016/S0013-4686(03)00472-9
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Laboratory investigations were performed in order to assess the effectiveness and the inhibition mechanism of an amino alcohol-based inhibitor currently used as admixture to prevent corrosion of steel in concrete. The investigation was performed in the presence of chloride ions, using solutions simulating the concrete interstitial solution. Electrochemical measurements allowed to conclude that, an inhibitor film is formed on the surface hindering the anodic activity. Furthermore, the analytical investigation through the use of X-ray photoelectron spectroscopy (XPS) shows that the inhibitor film is able to complex with the chloride ion. (C) 2003 Elsevier Ltd. All rights reserved.
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收藏
页码：3509 / 3518
页数：10
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