Corrosion protection of steel by electropolymerized lignins

被引:34
|
作者
Vagin, MY [1 ]
Trashin, SA [1 ]
Karyakin, AA [1 ]
机构
[1] Moscow MV Lomonosov State Univ, Fac Chem, Moscow 119992, Russia
关键词
lignosulfonate; electropolymerization; carbon steel; corrosion protection;
D O I
10.1016/j.elecom.2005.10.023
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
Electropolymerization of water soluble lignin derivatives (lignosulfonates) on steel surface is reported. It was noticed from both an appearance of anodic current of lignin oxidation and a subsequent considerable decrease in current at high anodic potentials, and confirmed by the knowledge of lignin oxidative polymerization. Ionic strength affects a potential of lignin oxidation: an increase of KCl concentration ten times (from 0.1 to 1 M) causes a decrease in oxidation potential for 1 V. Lignosulfonate electropolymerization is resulted in corrosion protection of carbon steel, which was more effective compared to the standard commercially available corrosion inhibitor COREXIT SXT-1003. (c) 2005 Elsevier B.V. All rights reserved.
引用
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页码:60 / 64
页数:5
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