Evaluation of the Anticorrosion Performance of CeO<sub>2</sub>-Modified Graphene Oxide Nanocomposite Epoxy Coating Subjected to Simulated Saline-Alkali Solution
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 thei...
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| Format: | Article |
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MDPI AG
2022-03-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/14/7/1412 |
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| author | Kai Lyu Xiaoyan Liu Ruidan Liu Heng Yang Yang Qiao Surendra P. Shah |
| author_facet | Kai Lyu Xiaoyan Liu Ruidan Liu Heng Yang Yang Qiao Surendra P. Shah |
| author_sort | Kai Lyu |
| collection | DOAJ |
| description | 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 CeO<sub>2</sub>–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 CeO<sub>2</sub>–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 CeO<sub>2</sub>–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. |
| first_indexed | 2024-03-09T11:29:27Z |
| format | Article |
| id | doaj.art-576216b700b84d2a8baa14034e33dfec |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-09T11:29:27Z |
| publishDate | 2022-03-01 |
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| record_format | Article |
| series | Polymers |
| spelling | doaj.art-576216b700b84d2a8baa14034e33dfec2023-11-30T23:54:04ZengMDPI AGPolymers2073-43602022-03-01147141210.3390/polym14071412Evaluation of the Anticorrosion Performance of CeO<sub>2</sub>-Modified Graphene Oxide Nanocomposite Epoxy Coating Subjected to Simulated Saline-Alkali SolutionKai Lyu0Xiaoyan Liu1Ruidan Liu2Heng Yang3Yang Qiao4Surendra P. Shah5College of Civil and Transportation Engineering, Hohai University, Nanjing 210024, ChinaCollege of Mechanics and Materials, Hohai University, Nanjing 211100, ChinaCollege of Mechanics and Materials, Hohai University, Nanjing 211100, ChinaMaterials & Structural Engineering Department, Nanjing Hydraulic Research Institute, Nanjing 210024, ChinaChina Railway Shanghai Design Institute Group Co., Ltd., Shanghai 200070, ChinaCollege of Engineering, University of Texas at Arlington, 701 S. Nedderman Drive, Arlington, TX 76019, USAIn 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 CeO<sub>2</sub>–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 CeO<sub>2</sub>–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 CeO<sub>2</sub>–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.https://www.mdpi.com/2073-4360/14/7/1412CeO<sub>2</sub>–GOcorrosion depthsaline-alkalianticorrosion |
| spellingShingle | Kai Lyu Xiaoyan Liu Ruidan Liu Heng Yang Yang Qiao Surendra P. Shah Evaluation of the Anticorrosion Performance of CeO<sub>2</sub>-Modified Graphene Oxide Nanocomposite Epoxy Coating Subjected to Simulated Saline-Alkali Solution Polymers CeO<sub>2</sub>–GO corrosion depth saline-alkali anticorrosion |
| title | Evaluation of the Anticorrosion Performance of CeO<sub>2</sub>-Modified Graphene Oxide Nanocomposite Epoxy Coating Subjected to Simulated Saline-Alkali Solution |
| title_full | Evaluation of the Anticorrosion Performance of CeO<sub>2</sub>-Modified Graphene Oxide Nanocomposite Epoxy Coating Subjected to Simulated Saline-Alkali Solution |
| title_fullStr | Evaluation of the Anticorrosion Performance of CeO<sub>2</sub>-Modified Graphene Oxide Nanocomposite Epoxy Coating Subjected to Simulated Saline-Alkali Solution |
| title_full_unstemmed | Evaluation of the Anticorrosion Performance of CeO<sub>2</sub>-Modified Graphene Oxide Nanocomposite Epoxy Coating Subjected to Simulated Saline-Alkali Solution |
| title_short | Evaluation of the Anticorrosion Performance of CeO<sub>2</sub>-Modified Graphene Oxide Nanocomposite Epoxy Coating Subjected to Simulated Saline-Alkali Solution |
| title_sort | evaluation of the anticorrosion performance of ceo sub 2 sub modified graphene oxide nanocomposite epoxy coating subjected to simulated saline alkali solution |
| topic | CeO<sub>2</sub>–GO corrosion depth saline-alkali anticorrosion |
| url | https://www.mdpi.com/2073-4360/14/7/1412 |
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