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Article Dans Une Revue Physical Chemistry Chemical Physics Année : 2022

Functionalization and exfoliation of graphite with low temperature pulse plasma in distilled water

Adrien Letoffé
Stéphane Cuynet
Cédric Noël
I. Royaud
Claire Hérold
Gérard Henrion
Marc Ponçot

Résumé

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.
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Dates et versions

hal-03813194 , version 1 (14-10-2022)

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Adrien Letoffé, Stéphane Cuynet, Cédric Noël, Ludovic de Poucques, I. Royaud, et al.. Functionalization and exfoliation of graphite with low temperature pulse plasma in distilled water. Physical Chemistry Chemical Physics, 2022, 24 (9), pp.5578-5589. ⟨10.1039/d1cp04826k⟩. ⟨hal-03813194⟩
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