Table 2 electrochemical performance of different supercapacitor electrode materials based on activated carbon and metals oxides supported on different supports reported in previous works.
Active material | Electrolyte | Substrate | Specific capacitance | Capacitance retention | [Ref] |
|---|---|---|---|---|---|
Activated carbon derived from orange peel | 1.0 m H2SO4 | – | 460.0 f g-1 | 98% | |
Activated carbon | 0.1 m H2SO4 | Glassy carbon | 275.0 f g-1 | – | |
Magnesium ferrite | 3.0 m KOH | Nickel foam | 250.0 f g-1 | – | |
Magnesium ferrite | – | – | 190.0 f g-1 | – | |
MgO2/activated carbon | 1.0 m H2SO4 | – | 579.7 f g-1 | – | |
MgO2/activated carbon paper | 1.0 m Na2SO4 | – | 485.4 f g-1 | 85% | |
ZnFe2O4/activated carbon | 3.0 m KOH | Nickel foam | 609.0 f g-1 | 91% | |
MnFe2O4/activated carbon | PVA/KOH gel | Nickel foam | 420.0 f g-1 | 98% | |
MgFe2O4/activated carbon | 2.0 Na2SO4 | Graphite sheet | 870.0 f g-1 | 95.1% | our work |
