Self-assembled flower-like ZnCo2O4 hierarchical superstructures for high capacity supercapacitors

摘要: Self-assembled ZnCo2O4 nanosheets were synthesised by a one-step hydrothermal method and their electrochemical supercapacitor properties investigated in 2 M aqueous KOH solution. Interesting capacitive observed with superb cyclic stability obtained even at current density of 20 A g−1. specific capacitance value 1691 F g−1 was 1 an energy ∼57.4 W h kg−1. The experimental findings provide useful insights into the design supercapacitors for potential high performance storage applications future.