Dear Sir. Concerning your issue about the criterion for a good solvent for graphene taken cyclohexanone as an example. Harnessing the exceptional physical properties of graphene often requires its dispersion into aqueous or organic media. Dispersion must be achieved at a concentration and stability appropriate to the final application. However, the strong interaction between graphene sheets means it disperses poorly in all but a few high boiling organic solvents. The below links presents an overview of graphene dispersion applications and a discussion of dispersion strategies: in particular the effect of shear, solvent and chemical modification on the dispersion of graphene (including graphene oxide and reduced graphene oxide). The extreme conditions of sonication even allows for the dispersion of G in to poor, low boiling point solvents including the following: acetone, chloroform, IPA, and cyclohexanone although a 48 h sonication time is required. However, long sonication times are generally undesirable as it can reduce sheet size and introduces defects which
undermine graphene's properties. I think the following below links may help you in your analysis:
https://www.sciencedirect.com/science/article/pii/S135902941500093X
http://www.rsc.org/suppdata/c7/gc/c7gc00112f/c7gc00112f2.pdf
Thanks
The benzene rings of graphene possess amphoteric properties. They interact intermolecularly with acids and Lewis bases. The ketone group of cyclohexanone has 2 pairs of non-covalent electrons. Therefore, cyclohexanone is the basis of Lewis and interrelates with the pi-electrons of the benzene ring. Confomers the chair and the bath prevent the approach of the neighboring particles of graphene.
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