▎ 摘　　要

NOVELTY - The method for producing highly dispersible graphene, involves adding rare earth solution with ethanol as solvent, heating rare earth solution in water bath, adjusting pH to obtain rare earth modified solution, immersing graphene oxide in rare earth modified solution and dispersing to obtain modified oxidized graphene dispersion, adding hydrated hydrazine solution to modified oxidized graphene dispersion to obtain graphene solution, washing with anhydrous ethanol and deionized water, placing in oven and drying to obtain final product. USE - Method for producing highly dispersible graphene (claimed). ADVANTAGE - The environmentally-friendly method enables simple and economical production of highly dispersible graphene with excellent dispersion effect. DETAILED DESCRIPTION - The method for producing highly dispersible graphene, involves (S1) adding rare earth solution with ethanol as solvent, (S2) heating rare earth solution in water bath, adjusting pH of rare earth solution to 5-6 to obtain rare earth modified solution, (S3) immersing graphene oxide in 20-500 mg/mL rare earth modified solution at 18-22 degrees C and dispersing to obtain modified oxidized graphene dispersion, (S4) adding 80 %mass hydrated hydrazine solution to modified oxidized graphene dispersion to obtain graphene solution, (S5) washing with anhydrous ethanol and deionized water several times at 40-60 degrees C, until no rare earth ions are detected, placing in oven and drying to obtain highly dispersible rare earth modified graphene powder.