Abstract
Water-soluble graphene dispersions were fabricated by the exfoliation of graphite functionalized with furfuryl alcohol by Diels–Alder cycloaddition reaction. The pristine graphite was firstly heat-treated in N-methyl-2-pyrrolidone (NMP) before it was functionalized with furfuryl alcohol, and then, the increased interlayer spacing is propitious for furfuryl alcohol to enter into the lattice and react with graphite. High-resolution transmission electron microscopy and Raman spectroscopy indicate that the functional graphene is a high-quality product without any significant defects, and atomic force microscopy shows that the functional graphene consists of single to few layers graphene. Moreover, the grafting ratio onto graphene is up to 1.52 mmol/g. Therefore, the method provides a feasible route to produce functional graphene.
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This work was supported by the Research Fund for the Doctoral Program of Higher Education of China (20120161110024) and the National Natural Science Foundation of China (No. J1210040).
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Zhang, J., Wang, W., Peng, H. et al. Water-soluble graphene dispersion functionalized by Diels–Alder cycloaddition reaction. J IRAN CHEM SOC 14, 89–93 (2017). https://doi.org/10.1007/s13738-016-0960-5
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DOI: https://doi.org/10.1007/s13738-016-0960-5