Fig. 2

a The XRD patterns of the exfoliated MoS₂ from different co-solvents of NMP, ethanol, and water with supercritical CO₂, respectively, as compared to the result from when supercritical CO₂ is used as the only solvent and to that of the bulk sample. b The XRD patterns of the exfoliated MoS₂ under conditions of NMP and supercritical CO₂ used individually compared to used together to show the synergistic effect. c Raman spectroscopy of the bulk and MoS₂ exfoliated from the complex solvent of NMP and supercritical CO₂