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Zhen Yuan Xia, Sergio Pezzini, Emanuele Treossi, Giuliano Giambastiani, Franco Corticelli, Vittorio Morandi, Alberto Zanelli, Vittorio Bellani and Vincenzo Palermo The Exfoliation of Graphene in Liquids by Electrochemical, Chemical, and Sonication-Assisted Techniques: A Nanoscale Study Advanced Functional Materials 23

Version of Record online: 17 APR 2013 | DOI: 10.1002/adfm.201203686

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The different exfoliation routes of graphite to produce graphene by sonication in solvent, chemical oxidation, and electrochemical oxidation are compared. The results obtained show the trade-off between exfoliation speed and preservation of graphene quality. A key step to achieve efficient exfoliation is to couple gas production and mechanical exfoliation on a macroscale with non-covalent exfoliation and preservation of graphene properties on a molecular scale.

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