▎ 摘　　要

NOVELTY - A graphene and silver nano composite material is prepared by adding silver nitrate (0.02-0.05 g) in distilled water (15 ml) to obtain a silver nitrate solution. The solution is sonicated with graphene (0.02-0.05 g) for 30-35 minutes to obtain a mixture. The mixture is added with thioacetamide (15-20 ml) having concentration of 0.2 M and ethanol solution under ultrasound wave for 10-15 minutes to obtain a product. The product is reacted in high pressure kettle at 80-150 degrees C for 12 hours. The reacted mixture is filtered and dried under vacuum at 40 degrees C at 12 hours. USE - Graphene and silver nano composite material for use as supercapacitor electrode. ADVANTAGE - The graphene and silver nano composite material is prepared with better conductivity, specific capacity, stability and charging and discharging performance in an inexpensive manner.