Table 1 Comparisons of the specific capacitance with the various carbon materials/ZnO composites.
Materials | Test system | Specific capacitance | Scan rate or current density | Electrolyte | Ref. |
|---|---|---|---|---|---|
Graphene-ZnO nanocomposite | three-electrode mode | 146 F g–1 | 2 mV s–1 | 1 M KCl | |
Activated carbon/ZnO composites | two-electrode mode | 117.4 F g–1 | 0.5 A g–1 | 6 M KOH | |
ZnO/carbon aerogel composites | three-electrode mode | 500 F g–1 | 100 mA cm–1 | 6 M KOH | |
Graphene-ZnO composite film | three-electrode mode | 11.3 F g–1 | 100 mV s–1 | 1 M KCl | |
Carbon nanotube-ZnO nanocomposite | two-electrode mode | 323.9 F g–1 | 50 mV s–1 | 1 M KCl | |
3D ZnO/rGO/ZnO sandwich-structured | three-electrode mode | 275 F g–1 | 5 mV s–1 | 1 M Na2SO4 | |
ZnO/reduced graphene oxide (RGO) nanocomposite films | three-electrode mode | 95 F g–1 | 10 mV s–1 | 1 M Na2SO4 | |
3D graphene ZnO nanorods composite networks | three-electrode mode | 554.23 F g–1 | 5 mV s–1 | 1 M KOH | |
Carbon nanotube (CNT) and zinc oxide composite | three-electrode mode | 126.3 F g–1 | No giving | Gel polymer | |
Zinc oxide/activated carbon nanofiber composites | three-electrode mode | 178.2 F g–1 | No giving | 6 M KOH | |
CS@ZnO core-shell nanocomposites | three-electrode mode | 630 F g–1 | 2 A g–1 | 6 M KOH | This work |
