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We have synthesised a novel ternary composite GO/PANI/CuFe 2  O 4  byoxidative-polymerisation technique with enhanced electrochemical performance. The analysis like XRD, FTIR, HR-SEM and EDS confirm the successful formation of material. The ternary supercapacitor electrode material GO/PANI/CuFe 2 O 4  consists of GO which acts as a substrate, PANI polymer and CuFe 2  O 4  that provides a more conducting nature. The GO/PANI/CuFe 2 O 4  ternary gives the highest specific capacitance value of 790.12 F/g and 357.28 F/g at 1 mV/s and 1 A/g from 3E and symmetric 2E device system. The system exhibits a wide 1.2 V potential window. From the symmetric system, GO/PANI/CuFe 2 O 4  had high specific energy of 71.45 Wh/kg at 1 A/g and 5983.90 W/kg specific power at 20 A/g with 78.77% retention of its original capacitance after 5000 cycles. The ternary system exhibited the least  Rct  value of 8.72 Ω. The synergistic effect between the individual components is the primary key for its outstanding electrochemical performance.

Synthesis and supercapacitor performance studies of graphene oxide based ternary composite