Electrochemical synthesis and corrosion behavior of thin polyaniline-benzoate film on mild steel

被引:70
作者
Popovic, MM [1 ]
Grgur, BN [1 ]
机构
[1] Univ Belgrade, Fac Technol & Met, Dept Phys Chem & Electrochem, YU-11001 Belgrade, Serbia
关键词
polyaniline; electropolymerization; benzoate mild steel; corrosion;
D O I
10.1016/j.synthmet.2003.12.022
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The electrochemical synthesis and corrosion behavior of polyaniline (PANI) on mild steel from sodium-benzoate solutions were investigated. Thin, adherent, polyaniline films were obtained by anodic oxidation with current densities between 0.3 and 1.5 mA cm(-2). During electropolymerization induction period was not observed. The Corrosion behavior of mild steel with polyaniline coating in 0.1 M sulfuric acid and 0.5 M NaCl (pH = 3) solutions, was investigated by spectrophotometric method and electrochemical impedance technique. The atmospheric corrosion behavior was also investigated. It was concluded that this coatings had provided corrosion protection of mild steel in all mentioned corrosion environments. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码:191 / 195
页数:5
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