Graphene oxide dispersions in organic solvents |
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Authors: | Paredes J I Villar-Rodil S Martínez-Alonso A Tascón J M D |
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Institution: | Instituto Nacional del Carbón, CSIC, Oviedo, Spain. paredes@incar.csic.es |
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Abstract: | The dispersion behavior of graphene oxide in different organic solvents has been investigated. As-prepared graphite oxide could be dispersed in N, N-dimethylformamide, N-methyl-2-pyrrolidone, tetrahydrofuran, and ethylene glycol. In all of these solvents, full exfoliation of the graphite oxide material into individual, single-layer graphene oxide sheets was achieved by sonication. The graphene oxide dispersions exhibited long-term stability and were made of sheets between a few hundred nanometers and a few micrometers large, similar to the case of graphene oxide dispersions in water. These results should facilitate the manipulation and processing of graphene-based materials for different applications. |
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