MgCo2O4 nanosheets//NF as a potential electrode with enhanced cycling performance for symmetric supercapacitor

Abstract

Transition metal oxides were noticed as advanced electrodes in supercapacitors because of their superurb theoretical capacitance and effective charge transfer kinetics properties. In this research work, we have strongly estimate the charge storage activities of the binder-free MgCo2O4 nanosheets as a positive material for high-performance supercapacitor applications. Herein, the MgCo2O4 nanosheet electrode attained the manifest capacitance of 1460 F/g at a current value of 2 mA cm−2 and along with good cycling retention of 87 % after 5000 cycles. Moreover, the MgCo2O4 based symmetric supercapacitor device delivered an impressive energy and power densities of 16.06 W h kg−1 and 1500 W kg−1, respectively, Interestingly, the assembled SSC device was well-retained the stability retention upto 96.2 % even after 4000 GCD cycles. Overall, the better electrochemical studies were concludes the simple approach towards an emerging the positive materials in the area of energy storage applications.