Functionalization and exfoliation of graphite with low temperature pulse plasma in distilled water
| Autor: | Adrien Letoffé, Stéphane Cuynet, Cédric Noel, Ludovic de Poucques, Isabelle Royaud, Claire Hérold, Gérard Henrion, Marc Ponçot, Sébastien Fontana |
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| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | Physical Chemistry Chemical Physics. 24:5578-5589 |
| ISSN: | 1463-9084 1463-9076 |
| Popis: | Graphene materials exhibit extraordinary properties, but are difficult to produce. The present work describes the possibility of using a plasma process to exfoliate and functionalize graphite flakes. An impulse plasma phase is generated at a liquid surface to produce chemical species and shock waves in order to modify the reactive liquid as well as the graphite flakes. With this process, industrial graphite was treated. 20% thickness diminution was observed, and the formation of a random turbostratic structure. The exfoliation occurs with small amount of functionalization of the surface. Even after treatment, the graphite flakes present a low defect density compared with other treated graphite obtained by more conventional chemical treatments. This process is a new way to exfoliate graphite and to produce functionalized graphenic materials. |
| Databáze: | OpenAIRE |
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