In order to make graphite in soluble form, many follow Hummer's method of making highly dispersible and colloidal graphene oxide. But, is there any solvent which makes a soluble form or atleast good dispersion of graphite powder itself?
Use DMF solution for getting good dispersion of Graphite powder..............
There was a recent publication in Scientific Reports, where the authors claim a large increase in solibility and yield of single-layer sheets. They added n-octylbenzene in quantitative (= sufficient for a full surface coating) amounts to NMP or o-DCB. If you are not in need of removing the n-octylbenzene afterwards, their procedures could be worth a try.
http://dx.doi.org/10.1038/srep16684
Researchgate just informed me about a new publication on this field. It was just accepted for publication in J Phys. Chem. Lett. The authors use NMP with added heneicosane linear alkanes terminated with different head groups, acting as stabilizing agents during exfoliation.
http://dx.doi.org/10.1021/acs.jpclett.6b01260
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