Electrochemical synthesis of corrosion protective polyaniline coatings on mild steel from aqueous salicylate medium
Title | Electrochemical synthesis of corrosion protective polyaniline coatings on mild steel from aqueous salicylate medium |
Publication Type | Journal Article |
Year of Publication | 2006 |
Authors | Pawar, P, Gaikwad, AB, Patil, PP |
Journal | Science and Technology of Advanced Materials |
Volume | 7 |
Issue | 7 |
Pagination | 732-744 |
Date Published | OCT |
Type of Article | Article |
ISSN | 1468-6996 |
Keywords | Conducting polymer coatings, corrosion protective coatings, cyclic voltammetry, Electrochemical polymerization, polyaniline coatings mild steel |
Abstract | Strongly adherent polyaniline coatings were electrochemically synthesized on mild steel from an aqueous salicylate medium. These coatings were characterized by cyclic voltammetry, UV-visible absorption spectroscopy, Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy. The extent of the corrosion protection offered by polyaniline coatings to mild steel was investigated in aqueous 3% NaCl solution, 0.01 M Na2SO4 Solution and in aqueous solutions of NaCl + Na2SO4 with different concentrations by potentiodynamic polarization technique and electrochemical impedance spectroscopy (EIS). The results of these studies reveal that the corrosion resistance of the polyaniline-coated mild steel is significantly higher and the corrosion rate is considerably lower than that of uncoated steel. (c) 2006 Published by NIMS and Elsevier Ltd. |
DOI | 10.1016/j.stam.2006.09.014 |
Type of Journal (Indian or Foreign) | Foreign |
Impact Factor (IF) | 3.433 |