▎ 摘　　要

NOVELTY - Preparing and characterizing graphene-graphene nanoribbon sponge, involves (a) measuring concentration of graphene oxide and graphene oxide nanoribbon solutions by gravity method, (b) extracting the corresponding volume of solution using a mold, and stirring, (c) freezing the graphene oxide-graphene oxide nanoribbon solution in the cold well of a freeze dryer, evacuating, and freeze-drying to ensure that the sample is completely dry, (d) removing the freeze-dried sample, where the graphene oxide-graphene oxide nanoribbon sponge that has not been reduced is the composite sponge, (e) placing in hydrazine hydrate steam, reducing, cooling to room temperature, vacuum drying in a vacuum drying box to remove residual hydrazine hydrate, and cooling to room temperature to obtain the sponge, and (f) characterizing the sponge by characterizing sponge microstructure, specific surface area, pore size distribution and chemical characterization. USE - The method is useful for preparing and characterizing graphene-graphene nanoribbon sponge. ADVANTAGE - The method adopts simple operation process. DETAILED DESCRIPTION - Preparing and characterizing graphene-graphene nanoribbon sponge, involves (a) measuring concentration of graphene oxide and graphene oxide nanoribbon solutions by gravity method in mg/ml, (b) extracting the corresponding volume of solution using a mold, where the mass ratio of graphene oxide to graphene oxide nanoribbons is 1:1, and stirring, (c) freezing the graphene oxide-graphene oxide nanoribbon solution in the cold well of a freeze dryer for 24 hours, evacuating, and freeze-drying for 48 hours to ensure that the sample is completely dry, (d) removing the freeze-dried sample, where the graphene oxide-graphene oxide nanoribbon sponge that has not been reduced is the composite sponge, (e) placing in hydrazine hydrate steam at 90 degrees C, reducing for 24 hours, cooling to room temperature, vacuum drying at 100 degrees C for 24 hours in a vacuum drying box to remove residual hydrazine hydrate, and cooling to room temperature to obtain the sponge, and (f) characterizing the sponge by characterizing sponge microstructure, specific surface area, pore size distribution and chemical characterization.