Figure 4
From: Ultrahigh capacitive performance from both Co(OH)2/graphene electrode and K3Fe(CN)6 electrolyte
Nyquist plots of Co(OH)2/GNS electrode in 1 M KOH (a) and Co(OH)2/GNS electrode in mixed 1 M KOH and 0.04 M K3Fe(CN)6 solution (b), in which the inset shows the equivalent circuit.
