Study on electrochemical process and protection against corrosion capacity of Ppy/α –Fe2O3 nanocomposite in the present of surfactants

Abstract

Electrosynthezation processe of Ppy/α -Fe₂O₃ nano-composite films on the iron have been investigated in solution containing potassium tetraoxalate, pyrrole and nano α -Fe₂O₃ suspension with and without surfactants. The film formed in solution with dodecylsulfate anionic surfactant gives the best results of protection against corrosion of iron. This film can protect metal in NaCl 3% corrosion solution during 370 hours, two times longer than which formed in solution with cetyl trimcthyl amonium cationic surfactant and five times longer than polypyrrolefilm without nano-oxide