Figure 12 | Scientific Reports

Figure 12

From: An innovative concept of use of redox-active electrolyte in asymmetric capacitor based on MWCNTs/MnO2 and Fe2O3 thin films

Figure 12

(a) CV curves for MWCNTs/MnO2//Fe2O3 asymmetric SCs at different operating potential windows in KFCN:Na2SO4 electrolyte at constant scan rate of 100 mV s−1, (b) the plot of specific capacitance with different operating potential window for MWCNTs/MnO2//Fe2O3 asymmetric SCs, (c) CV curves at various scan rates ranging from 5 to 200 mV s−1 for MWCNTs/MnO2//Fe2O3 asymmetric SCs, (d) plot of specific capacitance with scan rate for MWCNTs/MnO2//Fe2O3 asymmetric SCs, (e) the charge-discharge curves at various current densities for MWCNTs/MnO2//Fe2O3 asymmetric SCs, (f) plot of specific capacitance with current densities for MWCNTs/MnO2//Fe2O3 asymmetric SCs (g) Ragone plot for MWCNTs/MnO2//Fe2O3 asymmetric SCs, (h) plot of capacity retention with CV cycles for MWCNTs/MnO2//Fe2O3 asymmetric SCs at different scan rate and (i) Nyquist plot for asymmetric SCs.

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