Table 1 Comparison for the specific capacitances of Co3O4-based electrode materials
Morphology | BET specific surface area (m2/g) | Specific capacitance (F/g) | Ref. |
---|---|---|---|
Co3O4 hollow boxes | 31.07 | 278 F g−1 @ 0.5 A g−1 | [10] |
flower-like ZnO/Co3O4 nanobundle arrays | 37 | 1983 F g−1 @ 2 A g−1 | [18] |
mesoporous Co3O4 nanoflake arrays on carbon cloth | / | 450 F g−1 @ 1 A g−1 | [30] |
Hierarchical Co3O4 nanoflowers | 49.1 | 198 F g−1 @ 1 A g−1 | [31] |
3D-nanonet hollow structured Co3O4 | 92.8 | 739 F g−1 @ 1 A g−1 | [48] |
Co3O4 nanorods | / | 352 F g−1 @ 1 A g−1 | [51] |
Flower-like Co3O4 microspheres | 149 | 214 F g−1 @ 2 A g−1 | [52] |
Porous Co3O4 microspheres | 78.6 | 342.1 F g−1 @ 0.5 A g−1 | [53] |
Hollow Co3O4 nanowire arrays | 78 | 599 F g−1 @ 2 A g−1 | [54] |
Hollow fluffy Co3O4 cages | 245.5 | 948.9 F g−1 @ 1 A g−1 | [55] |
Co3O4 hierarchical micro-and nanostructures | 20.5 | 332.6 F g−1 @ 2 mA cm−2 | [56] |
3D Co3O4@MnO2 hierarchical nanoneedle arrays | / | 1693.2 F g−1 @ 1 A g−1 | [57] |
Co3O4@highly ordered microporous carbon | / | 1307 F g−1 @ 1 A g−1 | [58] |
Hierarchical Mo-decorated Co3O4 nanowire arrays | / | ~ 2000 F g−1 @ 10 A g−1 | [59] |
Co3O4 nanocubes | 80.3 | 754 F g−1 @ 1 A g−1 | This work |