Effect of CeO<sub>2</sub>–GO Nanocomposite on the Anticorrosion Properties of Epoxy Coating in Simulated Acid Rain Solution
The lamellar structure of graphene oxide and the filling effect of nano-cerium oxide particles together provide a good barrier and stability to coating. In this paper, cerium oxide-graphene oxide (4:1) nanocomposite was prepared by the hydrothermal synthesis method. The effect of cerium oxide–graphe...
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MDPI AG
2022-08-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/14/17/3573 |
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| author | Ruidan Liu Xiaoyan Liu Heng Yang Handuo Jie Tianyu Li Kai Lyu Surendra P. Shah |
| author_facet | Ruidan Liu Xiaoyan Liu Heng Yang Handuo Jie Tianyu Li Kai Lyu Surendra P. Shah |
| author_sort | Ruidan Liu |
| collection | DOAJ |
| description | The lamellar structure of graphene oxide and the filling effect of nano-cerium oxide particles together provide a good barrier and stability to coating. In this paper, cerium oxide-graphene oxide (4:1) nanocomposite was prepared by the hydrothermal synthesis method. The effect of cerium oxide–graphene oxide (4:1) nanocomposite on the anticorrosion properties of epoxy coating in simulated acid rain solution was studied by open circuit potential (OCP), electrochemical impedance spectroscopy (EIS), Mott–Schottky curve, Tafel curve, and micromorphological characterization, in order to compare it with pure epoxy coating, graphene oxide epoxy coating, and cerium oxide epoxy coating. The obtained results showed that cerium oxide–graphene oxide (4:1) epoxy coating’s protection efficiency was as high as 98.62%. These results indicated that cerium oxide–graphene oxide modified anticorrosive coating had an excellent application prospect in an acid rain environment. Meanwhile, owing to the poor protection ability of epoxy resin and unstably hydrolysis product of CeO<sub>2</sub> to the acidic medium, the resistance of CeO<sub>2</sub>–GO (4:1)/EP coating to acidic corrosive medium was relatively poorer than that of neutral and saline-alkali corrosive medium. |
| first_indexed | 2024-03-10T01:21:18Z |
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| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-10T01:21:18Z |
| publishDate | 2022-08-01 |
| publisher | MDPI AG |
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| series | Polymers |
| spelling | doaj.art-c581a8a50f0e48b9a2c5ff3cbd42d4072023-11-23T13:59:09ZengMDPI AGPolymers2073-43602022-08-011417357310.3390/polym14173573Effect of CeO<sub>2</sub>–GO Nanocomposite on the Anticorrosion Properties of Epoxy Coating in Simulated Acid Rain SolutionRuidan Liu0Xiaoyan Liu1Heng Yang2Handuo Jie3Tianyu Li4Kai Lyu5Surendra P. Shah6College of Mechanics and Materials, Hohai University, Nanjing 210098, ChinaCollege of Mechanics and Materials, Hohai University, Nanjing 210098, ChinaMaterials & Structural Engineering Department, Nanjing Hydraulic Research Institute, Nanjing 210024, ChinaCollege of Mechanics and Materials, Hohai University, Nanjing 210098, ChinaInstitute of Corrosion Protection, Hohai University, Nanjing 210098, ChinaCollege of Civil and Transportation Engineering, Hohai University, Nanjing 210098, ChinaCollege of Engineering, University of Texas at Arlington, 701 S. Nedderman Drive, Arlington, TX 76019, USAThe lamellar structure of graphene oxide and the filling effect of nano-cerium oxide particles together provide a good barrier and stability to coating. In this paper, cerium oxide-graphene oxide (4:1) nanocomposite was prepared by the hydrothermal synthesis method. The effect of cerium oxide–graphene oxide (4:1) nanocomposite on the anticorrosion properties of epoxy coating in simulated acid rain solution was studied by open circuit potential (OCP), electrochemical impedance spectroscopy (EIS), Mott–Schottky curve, Tafel curve, and micromorphological characterization, in order to compare it with pure epoxy coating, graphene oxide epoxy coating, and cerium oxide epoxy coating. The obtained results showed that cerium oxide–graphene oxide (4:1) epoxy coating’s protection efficiency was as high as 98.62%. These results indicated that cerium oxide–graphene oxide modified anticorrosive coating had an excellent application prospect in an acid rain environment. Meanwhile, owing to the poor protection ability of epoxy resin and unstably hydrolysis product of CeO<sub>2</sub> to the acidic medium, the resistance of CeO<sub>2</sub>–GO (4:1)/EP coating to acidic corrosive medium was relatively poorer than that of neutral and saline-alkali corrosive medium.https://www.mdpi.com/2073-4360/14/17/3573CeO<sub>2</sub>nanocompositeelectrochemistryEISacid rain |
| spellingShingle | Ruidan Liu Xiaoyan Liu Heng Yang Handuo Jie Tianyu Li Kai Lyu Surendra P. Shah Effect of CeO<sub>2</sub>–GO Nanocomposite on the Anticorrosion Properties of Epoxy Coating in Simulated Acid Rain Solution Polymers CeO<sub>2</sub> nanocomposite electrochemistry EIS acid rain |
| title | Effect of CeO<sub>2</sub>–GO Nanocomposite on the Anticorrosion Properties of Epoxy Coating in Simulated Acid Rain Solution |
| title_full | Effect of CeO<sub>2</sub>–GO Nanocomposite on the Anticorrosion Properties of Epoxy Coating in Simulated Acid Rain Solution |
| title_fullStr | Effect of CeO<sub>2</sub>–GO Nanocomposite on the Anticorrosion Properties of Epoxy Coating in Simulated Acid Rain Solution |
| title_full_unstemmed | Effect of CeO<sub>2</sub>–GO Nanocomposite on the Anticorrosion Properties of Epoxy Coating in Simulated Acid Rain Solution |
| title_short | Effect of CeO<sub>2</sub>–GO Nanocomposite on the Anticorrosion Properties of Epoxy Coating in Simulated Acid Rain Solution |
| title_sort | effect of ceo sub 2 sub go nanocomposite on the anticorrosion properties of epoxy coating in simulated acid rain solution |
| topic | CeO<sub>2</sub> nanocomposite electrochemistry EIS acid rain |
| url | https://www.mdpi.com/2073-4360/14/17/3573 |
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