Fig. 6From: Evaluation of Graphene/WO3 and Graphene/CeO x Structures as Electrodes for Supercapacitor ApplicationsElectrode efficiency. Detailed legend: a Capacitance retention of the different electrodes and b charge/discharge efficiency. c Charge-discharge cycle of one and three layers of Gr/CeO x . d Similar for the Gr/WO3 hybridBack to article page