▎ 摘　　要

NOVELTY - Porous graphene/silver composite film comprises (i) dispersing graphene oxide in de-ionized water, stirring for 1-2 hours, ultrasonically oscillating for 2-4 hours to obtain oxidized graphene dispersion liquid with a concentration of 2-5 mg/mL; (ii) adding the graphene oxide dispersion to the silver nitrate solution, ultrasonically dispersing for 20-30 minutes, adding vitamin C, and stirring the reaction at 85-95 degrees C, reacting for 12 hours, naturally cooling the mixed solution, carrying out centrifugal sedimentation, collecting the product, and washing by distilled water for 2-3 times to obtain graphene/silver nanocomposite material; (iii) re-dispersing the graphene/silver nanocomposite material in water and stirring for 20-30 minutes to obtain precursor solution; and (iv) freezing and drying the precursor solution at minus 65-75 degrees C for 2-3 days to obtain a graphene / silver aerogel, and compressing the aerogel into three-dimensional porous graphene/silver composite film. USE - The film is useful for friction nano-generator as anode material for a molar nano-generator (claimed). ADVANTAGE - The method is simple and economical. The film is super-soft, and has high performance anode material. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for use of the porous graphene/silver composite film for friction nano-generator as anode material for a molar nano-generator.