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 language | English (US) |
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Article number | 1412 |
Journal | Polymers |
Volume | 14 |
Issue number | 7 |
DOIs | |
State | Published - 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