| GAO Zheng-yuan,SUN Cheng-jin,YANG Dong,LU Zai-liang,SUN Peng-fei.Research Progress of Graphene and Its Derivatives in the Field of Anti-corrosion[J],50(3):116-127 |
| Research Progress of Graphene and Its Derivatives in the Field of Anti-corrosion |
| Received:March 29, 2020 Revised:May 22, 2020 |
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| DOI：10.16490/j.cnki.issn.1001-3660.2021.03.010 |
| KeyWord:graphene graphene derivatives film nano-filler corrosion-resistant mechanism |
| Author | Institution |
| GAO Zheng-yuan |
School of Mechanotronics and Vehicle Engineering, Chongqing Jiaotong University, Chongqing , China |
| SUN Cheng-jin |
School of Mechanotronics and Vehicle Engineering, Chongqing Jiaotong University, Chongqing , China |
| YANG Dong |
School of Mechanotronics and Vehicle Engineering, Chongqing Jiaotong University, Chongqing , China |
| LU Zai-liang |
Chongqing Management and Service Center of Solid Wastes, Chongqing , China |
| SUN Peng-fei |
School of Mechanotronics and Vehicle Engineering, Chongqing Jiaotong University, Chongqing , China |
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| Abstract: |
| Graphene and its derivatives have good shielding properties against corrosive media. Graphene has low chemical inertness and excellent physical properties; and its derivatives such as graphene oxide, reduced graphene oxide, graphene quantum dots and graphene oxide quantum dots are featured with abundant surface functional groups, easy modification and good dispersion, therefore, in the field of anti-corrosion, more and more researchers have paid attention on it. This paper reviews the research progress of graphene anti-corrosion films and graphene derivative anti-corrosion composite coatings, introduces the two main methods of “bottom-up” and “top-down” in preparation of graphene and its derivatives, and their anti-corrosion performance and anti-corrosion mechanism, describes the main problems of the graphene anti-corrosion film that couldn't provide long-term corrosion protection and couldn't be directly applied to many metal surfaces due to its own structural defects and the carbon solubility of its substrate, discusses three main solutions of new film preparation methods, film structure design and film parameter optimization against the existing problems, summarizes the main application methods of graphene derivative nano-fillers in the field of anti-corrosion, including anti-corrosion organic coatings, electrodeposition and hydrothermal methods, etc., specifies the problem of poor dispersion within the coating due to the interaction force and self-hydrophobicity of graphene nanofillers, comprehensively analyzes the advantages, disadvantages and modification methods of three types of nano-fillers, namely graphene oxide, reduced graphene oxide, graphene/graphene oxide quantum dots, explains the methods for improving the dispersion and hydrophobicity of nanofillers through covalent bonding, electrostatic adsorption, etc., and the way to improve the long-term anti-corrosion performance of nano-filler composite coatings through the electrochemical protection of zinc ions and conductive polymers, finally states the existing problems and proposes the development trends of graphene and its derivatives in the field of anti-corrosion. |
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