Electrodeposition of CQDs/P-Fe2O3 on carbon cloth for flexible asymmetric supercapacitors

By incorporating the advantages of different materials, the composite material can Preferably strengthen the electrochemical performance of the electrode material. In this paper, CQDs/P-Fe 2 O 3 on carbon cloth (CC) as flexible electrode material was synthesized with one-pot hydrothermal synthesis procedure. The one-dimentional (1D) structure was favorable due to the chemical stability, electrical conductivity, and fast electrochemical kinetics. While the current density is 0.5 A/g, the specific capacitance of the composite reaches 1786.5 F/g. The assembled supercapacitor remains at 91.31% of its initial specific capacitance after 1000 cycles. When the power density is 639.99 W/kg, the energy density is 103.11Wh/kg, and even when the power density is 12800 W/kg, the energy density can reach 44.8 Wh/kg.