One-Step Potentiostatic Electrodeposition of Polypyrrole Coatings on Zinc Coated Steel Surfaces
| Periodical | Key Engineering Materials (Volume 415) |
|---|---|
| Main Theme | Electrochemistry and physical chemical methods in serving materials for sustainable development |
| Edited by | Daniela Ionita |
| Pages | 65-68 |
| DOI | 10.4028/www.scientific.net/KEM.415.65 |
| Citation | Cristian Pirvu et al., 2009, Key Engineering Materials, 415, 65 |
| Online since | September, 2009 |
| Authors | Cristian Pirvu, Mihaela Mindroiu, Ioana Demetrescu |
| Keywords | Corrosion, Polymer Coating, Polypyrrole, Zinc-Coated Steel |
| Price | US$ 28,- |
In this paper the elaboration and characterization of polypyrrole coatings on active metallic surfaces were performed. The one-step electropolymerization of pyrrole on zinc-coated steel electrodes was investigated under several techniques (cyclic voltammetry, electrochemical impedance spectroscopy, atomic force microscopy) in aqueous medium. Adherent and homogeneous PPy coatings were obtained using tartrate counter-ions. The obtained results show that the PPy coatings increase the corrosion potential and reduce the corrosion current.