• 文献标题:   Development of oxidation and corrosion resistance hydrophobic graphene oxide-polymer composite coating on copper
  • 文献类型:   Article
  • 作  者:   SINGH BP, JENA BK, BHATTACHARJEE S, BESRA L
  • 作者关键词:   electrophoretic deposition, graphene oxide, silicone fluid, corrosion resistance, coating, eis
  • 出版物名称:   SURFACE COATINGS TECHNOLOGY
  • ISSN:   0257-8972
  • 通讯作者地址:   CSIR
  • 被引频次:   134
  • DOI:   10.1016/j.surfcoat.2013.06.004
  • 出版年:   2013

▎ 摘  要

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 10 V and deposition time 30s, uniform crack free deposit with thickness 45 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. (C) 2013 The Authors. Published by Elsevier B.V. All rights reserved.