Fig. 1From: Effects of Tip Sonication Parameters on Liquid Phase Exfoliation of Graphite into Graphene Nanoplateletsa Optical density and mass concentration of graphene dispersions produced by exfoliating G10, G30, and G100 flaked graphite samples as a function of the surface tension of ethanol-water solvent mixtures. b Relationships between the surface tension of solvent mixtures and the volume fractions of water (orange) and ethanol (blue)Back to article page