Evaluation of the Anticorrosion Performance of CeO2-Modified Graphene Oxide Nanocomposite Epoxy Coating Subjected to Simulated Saline-Alkali Solution

Kai Lyu, Xiaoyan Liu*, Ruidan Liu, Heng Yang, Yang Qiao, Surendra P. Shah

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

In the marine service environment, metal materials have a serious risk of corrosion. The corrosion rate of metal materials will be accelerated by the dual action of temperature change and alkali salt in saline-alkali environment. In order to delay the metal materials’ corrosion rate and prolong their service life, this paper used a CeO2 –GO (4:1) nanocomposite prepared by the hydrothermal synthesis method to make an anticorrosion coating. The anticorrosion performance was evaluated by stereo microscope and 3D images of the corrosion site were fitted for calculation. The state evolution of the CeO2 –GO (4:1)/EP coating immerged in a simulated saline-alkali solution was studied by open circuit potential (OCP), electrochemical alternating current impedance spectroscopy (EIS), Mott–Schottky curve and Tafel curve. The results indicated that CeO2 –GO (4:1) nanocomposites exhibited good resistance compared with graphene oxide and nano cerium oxide in a simulated saline-alkali environment. The research in this paper lays a firm theoretical foundation for the application of nano cerium-oxide-modified graphene oxide anticorrosive coating in saline-alkali environment engineering.

Original languageEnglish (US)
Article number1412
JournalPolymers
Volume14
Issue number7
DOIs
StatePublished - Apr 1 2022

Funding

Acknowledgments: The authors gratefully acknowledge the financial support of the National Natural Science Foundation of China (No. 518037611 and No. 52108206). Funding: This research was funded by the National Natural Science Foundation of China, grant number 52108206.

Keywords

  • CeO –GO
  • anticorrosion
  • corrosion depth
  • saline-alkali

ASJC Scopus subject areas

  • General Chemistry
  • Polymers and Plastics

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