▎ 摘　　要

NOVELTY - Preparation of graphene carbon nanotubes composite material comprises adding graphite oxide and acid treated carbon nanotubes into water; ultrasonically shaking; stirring to obtain uniformly-dispersed mixed solution; filtering mixed solution; drying solid by heating at 10 degrees C/minute at 1000-1200 degrees C under inert gases for 10-30 minutes; and cooling at room temperature to obtain graphene-carbon nanotubes composite material. USE - Preparation of graphene carbon nanotubes composite material. ADVANTAGE - The method has simple process and low cost. DESCRIPTION OF DRAWING(S) - The drawing shows a block diagram of a process for preparation of graphene carbon nanotubes composite material (Drawing includes non-English language text).