Figure 4: Electrochemical characterization of HGF-EC in EMIMBF 4 /AN.
From: Holey graphene frameworks for highly efficient capacitive energy storage
(a,b) CV curves (a) and galvanostatic charge/discharge curves (b) of HGF-EC. (c) Comparison of specific capacitances of HGF and GF electrodes versus different current densities. (d,e) Gravimetric (d) and volumetric (e) capacitances of HGF electrodes versus different current densities (with graphene areal mass loading of 1 and 10 mg cm−2, respectively). (f) Cycling stability of HGF-EC at a current density of 20 A g−1.
