• 文献标题:   Preparation and Corrosion Behavior of Chemically Bonded Ceramic Coatings Reinforced by Functionalized Graphene Oxide
  • 文献类型:   Article
  • 作  者:   GUO YX, BIAN D, JIANG GQ, ZHAO YW
  • 作者关键词:   graphene oxide, amino group, chemically bonded ceramic coating, corrosion protection
  • 出版物名称:   INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
  • ISSN:   1452-3981
  • 通讯作者地址:   Jiangnan Univ
  • 被引频次:   1
  • DOI:   10.20964/2019.11.14
  • 出版年:   2019

▎ 摘  要

Graphene oxide (GO) was decorated by 3-aminopropyltriethoxysilane (APTES) through the reactions of carboxylic and epoxide groups with amino groups. Then, the chemically bonded ceramic coatings were prepared with the addition of functionalized GO. The dispersion quality of GO in the ceramic matrix was examined by scanning electron microscopy (SEM), which revealed no cracks or space between GO and ceramic matrix. The corrosion protection of the ceramic coatings was characterized by potentiodynamic polarization testing after immersion in 3.5 wt% NaC1 solution for 10 h at room temperature. The corrosion resistance of the ceramic coatings was remarkably improved with the addition of the functionalized GO. The protection efficiency of the ceramic coatings increased to 90% with the addition of 0.6 wt% functionalized GO. The enhancement of the anticorrosion performance was mainly attributed to the barrier properties of the well-dispersed functionalized GO in the ceramic matrix.