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Figure 4 | Nanoscale Research Letters

Figure 4

From: Reduced graphene oxide aerogel with high-rate supercapacitive performance in aqueous electrolytes

Figure 4

Electrochemical performance of RGOA in KOH and H 2 SO 4 electrolytes. (a) Cyclic voltammograms at the voltage scan rates of 10, 20, and 50 mV s−1. (b) Plots of specific capacitance and its retention ratio vs. voltage scan rate. (c) Galvanostatic charge–discharge curves at a current density of 2 A g−1. (d) Plots of specific capacitance and its retention ratio vs. current density.

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