Figure 5
From: Plasma-induced, nitrogen-doped graphene-based aerogels for high-performance supercapacitors
(a) EIS of the RGO/Fe3O4 and NG/Fe3O4 electrodes, with insets showing the high-frequency parts and the equivalent circuit diagram used for fitting the EIS date. (b) Cycle performance of the NG/Fe3O4 electrode at a current density of 2 A g−1. The inset shows the first 10 cycles of galvanostatic charge−discharge. EIS, electrochemical impedance spectra.
