Abstract
The MnCo2O4.5 hexagonal nanoplates and multi-wall carbon nanotube (MWCNT)@MnCo2O4.5 composite were prepared via a rapid and low-cost co-precipitation method. The prepared materials were characterized by various characterization techniques and used as an electrode for supercapacitors. The specific capacitance values of 451 and 1292Fg−1 were obtained from MnCo2O4.5 and MWCNT@MnCo2O4.5, respectively at 1Ag−1. Furthermore, MWCNT@MnCo2O4.5//AC-based device indicated the higher energy density value of 33Whkg−1 at the power density of 362.5Wkg−1 under the current density of 0.5Ag−1. The practical electronic application of the device was tested by powering twelve light-emitting diodes, a digital watch and a motor fan. From the results of the MnCo2O4.5 with MWCNTs, the MnCo2O4.5 is expected to be a potential viable material for high-performance electrochemical capacitors.
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