Polyaniline layer for Iron Protection in sulfate medium

被引:40
作者
Bernard, MC
Hugot-LeGoff, A
Joiret, S
Dinh, NN
Toan, NN
机构
[1] Univ Paris 06, CNRS Phys Liquides & Electrochim, UPR 15, F-75252 Paris 05, France
[2] CNST, Inst Mat, Hanoi, Vietnam
关键词
polyaniline; electrodeposition; oxalic acid; phosphoric acid; iron corrosion;
D O I
10.1016/S0379-6779(98)01001-7
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Polyaniline has been potentiostatically electrodeposited on iron in acidic medium to protect the electrode from corrosion. Two acids have been tested: oxalic and phosphoric acids to look for the influence of the passive layer on the system behavior. Influence of additives in the deposition have been examined together with temperature. Careful control of temperature deposition is necessary due to the high activation energy of the process. Metanilic and camphorsulfonic acids act as plasticisers far the polymer layer but also have beneficial effects on eIectrodeposition by lowering the passive potential and active currents.
引用
收藏
页码:1383 / 1384
页数:2
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