▎ 摘　　要

NOVELTY - Sandwich structure of silver/reduced graphene oxide nano composite material, comprises graphene sheet structure. The graphene sheets are bonded by silver-doped nano-particles between the graphene layers, and connected by silver-carbon bonds between the silver nano-particles and graphite. USE - Sandwich structure of silver/reduced graphene oxide nano composite material used in chemical catalysis (claimed). ADVANTAGE - The sandwich structure of silver/reduced graphene oxide nano composite material inhibits charge recombination as a good conductor. The non-carbon particles enter the layer, the interlayer distance of graphene will increase, and the interlayer Van der Waals forces become weak, which reduces the agglomeration. The silver is used as a reducing agent, that is greatly enhanced by the composite sandwiches. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: (1) preparing sandwich structure of silver/reduced graphene oxide nano composite material, which involves adding oxidized graphite alkene aldehyde, and dispersing the graphene oxide into deionized water to obtain a concentration of 0.5mg/ml of aldehyde oxide graphene oxide solution; mixing 100ml 0.5mg/ml of aldehyde oxide graphene oxide solution and 10ml 1x 10-4mole/l silver ammonia solution in a volume mixing ratio of 10:1; adding glucose, at 98 degrees C, stirring and reacting for 1hours and reducing the graphene fully; and washing the reduced product with ethanol and centrifuging, and drying the centrifuged product under vacuum to obtain sandwich structure of silver/reduced graphene oxide nano composite material; and (2) applying silver/reduced graphene oxide nano composite material for catalysis of 4-nitrophenol, which involves mixing 10 ml of 5.0x 10-4 mole/l 4-nitrophenol solution and 10 ml of 0.1 mole/l sodium borohydride uniformly; and adding 3mg catalyst for catalysis.