Fig. 4. (a) Comparison of cyclic voltammograms of all electrodes (scan rate: 50 mV s─1). Cyclic Voltammograms of rGO:CB, (b) and NirGO3 at various scan rates (c). Variation of specific capacitance calculated from CV with scan rate for all electrodes (d). specific capacitance vs scan rate graphs of all electrodes.