▎ 摘　　要

NOVELTY - Synthesizing (M1) nanocomposite by solution combustion synthesis comprising transition metal nitrates as oxidizers, fuel, filler with lean fuel to oxidizer ratio comprises mixing transition metal precursors, fuel and filler in 150 ml of deionized water, and stirring at one hour at 80℃, keeping the mixed solution on hot plate at 200℃ for solvent evaporation, introducing the resultant powder into preheated muffle furnace maintained at 250℃ for 6 hours, after calcination, and collecting, and crushing the resulting powder with mortar and pestle. USE - The method is useful for synthesizing nanocomposite by solution combustion synthesis, which is used in supercapacitor electrodes with high capacitance. ADVANTAGE - The method: has excellent electrochemical performance; provides nanocomposite which leads to enhanced performance of the supercapacitor; and is simple and economical. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for synthesizing (M2) nanocomposite by solution combustion synthesis with excellent electrochemical performance having transition metal nitrates as oxidizers, fuel, filler with lean fuel to oxidizer ratio, where the oxidizers are zinc nitrate and nickel nitrate, fuel is dextrose and filler is reduced graphene oxide comprising mixing 41 wt.% zinc nitrate, 41 wt.% nickel nitrate, 13 wt.% dextrose and 5 wt.% reduced graphene oxide in 150 ml of deionized water and stirred for one hour at 80℃, keeping the mixed solution on hot plate at 200℃ for solvent evaporation, introducing the resultant powder into preheated muffle furnace maintained at 250℃ for 6 hours, and after calcination, collecting, and crushing the resulting powder with mortar and pestle.