Fig. 7

(a) Specific capacitance vs different scan rates, (b) plot of log i vs log ν for NiO–Mn3O4 nanocomposites electrode (inset: linear fitting of k1 and k2 parameters), (c) CV curve at a scan rate of 30 mV s−1 (Shaded region shows the diffusive contribution), (d) percentage of Diffusive and capacitive contribution at various sweep rates.