Polypyrrole Electrodeposition on T16A17Nb Alloy in Aqueous and Non-aqueous Solutions

摘要

Polypyrrole were synthesized by electrochemical methods both in aqueous and non-aqueous media on Ti6Al7Nb alloy as substrate. The potentiodynamic, potentiostatic and galvanostatic procedures were used for polypyrrole electrodeposition. The surface analysis of the titanium alloy/polypyrrole surface was performed by atomic force microscopy showed that the film obtained in acetonitrile was more adherent on the surface comparing with that obtained in aqueous solution. This different behaviour is probably due to the lower adherence of polypyrrole on oxidized surfaces existing in aqueous solutions.