| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 8029582 | Surface and Coatings Technology | 2013 | 7 Pages |
Abstract
Oxidation and corrosion resistant hydrophobic graphene oxide-polymer composite (GOPC) coating was fabricated on the copper by electrophoretic deposition (EPD). The GOPC coatings were characterized by scanning, and transmission electron microscope (SEM, TEM), thermogravimetric (TGA) and electrochemical impedance spectroscopy (EIS). At optimal EPD conditions of operating voltage 10Â V and deposition time 30s, uniform crack free deposit with thickness 45Â nm was achieved. Potentiodynamic polarization and EIS investigation demonstrated the efficacy of GOPC coating in shielding copper from corrosion under stringent environment condition. The electrochemical degradation of GOPC coating is more than three orders of magnitude lower than the bare copper substrate. This was due to the impermeability of GOPC coatings to ion diffusion of oxidizing gas and corrosive liquid solution. The procedure employed is fairly facile, inexpensive and less time consuming.
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Authors
Bimal P. Singh, Bikash Kumar Jena, Sarama Bhattacharjee, Laxmidhar Besra,