Mesoporous Nickel-Based Zeolite Capsule Complex with Fe₃O₄ as Electrode for Advanced Supercapacitor

Figure 9

CV curve of the device (a) at different working potential window at 10 mV s⁻¹, (b) different scan rates, (c) variation of capacitance with scan rates, (d) GCD curves of the cell at various current densities, (e) specific capacitance at various current densities, and (f) Ragone plots of the energy and power densities of the device at various charge/discharge rates.

(a)

(b)

(c)

(d)

(e)

(f)