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Table 1 Comparison for the specific capacitances of Co3O4-based electrode materials

From: Egg Albumin-Assisted Hydrothermal Synthesis of Co3O4 Quasi-Cubes as Superior Electrode Material for Supercapacitors with Excellent Performances

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

  1. “/” denotes no related data

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