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Table 2 Results from the electrochemical characterization of the different hybrid electrodes

From: Evaluation of Graphene/WO3 and Graphene/CeO x Structures as Electrodes for Supercapacitor Applications

Sample Capacitance (mF/cm2) Capacitance retention (1000 cycles) Charge/discharge efficiency (%, after 900 cycles) Charge/discharge time (s)
1-layer Gr 0.87 1.7
1-layer Gr/CeO2 1.27 90 38 1.7
3-layer Gr/CeO2 4.55 98 60 4.7
1-layer Gr/WO3 2.69 48 50 1.9
3-layer Gr/WO3 4.15 95 40 5.5