Solution-processed highly adhesive graphene coatings for corrosion inhibition of metals
| Autor: | D. K. Hwang, Jae Min Myoung, Gi Cheol Son, Moon-Ho Ham, Jaewon Jang, Kyusang Cho, Sang-Soo Chee |
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| Rok vydání: | 2018 |
| Předmět: |
Materials science
Annealing (metallurgy) Oxide 02 engineering and technology engineering.material 010402 general chemistry 01 natural sciences law.invention Corrosion Metal chemistry.chemical_compound Coating law General Materials Science Electrical and Electronic Engineering Graphene Bilayer 021001 nanoscience & nanotechnology Condensed Matter Physics Atomic and Molecular Physics and Optics 0104 chemical sciences Surface coating Chemical engineering chemistry visual_art visual_art.visual_art_medium engineering 0210 nano-technology |
| Zdroj: | Nano Research. 12:19-23 |
| ISSN: | 1998-0000 1998-0124 |
| Popis: | The corrosion of metals can be induced by different environmental and operational conditions, and protecting metals from corrosion is a serious concern in many applications. The development of new materials and/or technologies to improve the efficiency of anti-corrosion coatings has attracted renewed interest. In this study, we develop a protective coating composed of a bilayer structure of reduced graphene oxide (RGO)/graphene oxide (GO) applied to Cu plates by spray-coating and subsequent annealing. The annealing of the GO/Cu plates at 120 °C produces a bilayer structure of RGO/GO by the partial reduction of the spray-coated GO layer. This induces superior corrosion resistance and adhesion strength compared to those of GO/Cu and RGO/Cu plates because of the hydrophobic nature of the RGO surface exposed to the surroundings and the formation of Cu–O bonds with the O-based functional groups of GO. This approach provides a viable and scalable route for using graphene coatings to protect metal surfaces from corrosion. |
| Databáze: | OpenAIRE |
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