▎ 摘　　要

NOVELTY - Preparing grapheme-carbon nanotube composite aerogel, comprises (i) modifying carbon nanotubes and dispersing in deionized water, (ii) oxidizing graphite to prepare graphene oxide aqueous solution, (iii) blending the obtained graphene oxide aqueous solution with 1-Ethyl-3-(3-dimethylaminopropyl)carbodiimide (EDA), and aminated under ultraviolet radiation, (iv) mixing the graphene slurry with the functionalized carbon nanotube aqueous solution to form chemical cross-links under microwave radiation to obtain hydrosol, (v) placing the product of step (iv) in an environment of 70-90 degrees C and reacting for 6-24 hours, washing with water, placing in an environment of 40-60 degrees C and drying for 24-72 hours to obtain aerogel block, and (vi) drying the block, hot pressing and sintering to obtain a graphene/carbon nanotube composite aerogel. USE - The method is useful for preparing grapheme-carbon nanotube composite aerogel for electromagnetic stealth, electrochemistry, sewage treatment and sensors. ADVANTAGE - The method improves the layer stacking and improve the overall performance, has a simple preparation process, environmental protection, low cost, and can be widely used in industrial production. DETAILED DESCRIPTION - Preparing grapheme-carbon nanotube composite aerogel, comprises (i) modifying carbon nanotubes and dispersing in deionized water, (ii) oxidizing graphite to prepare graphene oxide aqueous solution, (iii) blending the obtained graphene oxide aqueous solution with 1-Ethyl-3-(3-dimethylaminopropyl)carbodiimide (EDA), and aminated under ultraviolet radiation, (iv) mixing the graphene slurry with the functionalized carbon nanotube aqueous solution to form chemical cross-links under microwave radiation to obtain hydrosol, (v) placing the product of step (iv) in an environment of 70-90 degrees C and reacting for 6-24 hours, washing with water, placing in an environment of 40-60 degrees C and drying for 24-72 hours to obtain aerogel block, and (vi) drying the block, hot pressing and sintering to obtain a graphene/carbon nanotube composite aerogel.