Table 1 Calculated values of the specific capacitance and specific capacity of electrodes from the GCD plots at various current density.
Current density | Specific capacitance (F g−1) | Specific capacity (mAh g−1) | ||||
|---|---|---|---|---|---|---|
(A g−1) | NiO | Mn3O4 | NiO–Mn3O4 | NiO | Mn3O4 | NiO–Mn3O4 |
1 | 230 | 246 | 372 | 35 | 42 | 60 |
3 | 211 | 220 | 323 | 29 | 31 | 45 |
5 | 186 | 192 | 305 | 26 | 28 | 42 |
7 | 171 | 178 | 292 | 23 | 25 | 40 |
10 | 146 | 151 | 265 | 19 | 22 | 37 |