Table 2. Performance comparison of different forms of Co₃O₄ nanostructures.

Co3O4 nanostructures	Current density (mA g−1)	1st discharge capacity (mAh g−1)	Capacity upon cycling (mAh g−1)	References
Co3O4-KIT-6-40	50	1489	1141 after 25 cycles	This work
Co3O4-KIT-6-80	50	1352	1140 after 25 cycles	This work
Co3O4-KIT-6-100	50	995	943 after 25 cycles	This work
Co3O4-KIT-6-130	50	989	1029 after 25 cycles	This work
Co3O4-SBA-15-100	50	852	774 after 25 cycles	This work
Mesoporous Co3O4 nanoflakes	89	1192	883 after 25 cycles	37
Hollow-structured Co3O4 nanoparticles	50	1107	880 after 25 cycles	38
Co3O4 mesoporous microdisks	100	1032	765 after 30 cycles	39
Co3O4 nanocages	178	1116	864 after 50 cycles	9
Co3O4 nanobowl and nanotube arrays	35	1468, 1293	843, 895 after 10 cycles	40
Co3O4 nanoparticles with opened-book morphology	100	1408	950 after 25 cycles	41
Co3O4 nanoflowers	50	1849	980 after 30 cycles	8
Hairy ball-like Co3O4 nanostructures	100	1768	860 after 50 cycles	42
Wire-like Co3O4 nanostructures	50	1043	275 after 20 cycles	43
Co3O4 nanobelt array	177	1086	750 after 25 cycles	26
Co3O4 nanorods and nanobelts	44.5	1739, 1550	1124, 1260 after 50 cycles	4
Porous Co3O4 nanorods	50	1518	1132 after 30 cycles	44
Porous Co3O4 nanorods	50	1171	850 after 10 cycles	45
Co3O4 nanotubes, nanoparticles and nanorods	50	850, 830 and 815	500, 480 and 450 after 100 cycles	46
Porous Co3O4 nanotube	50	1918	1131 after 20 cycles	47
Needlelike Co3O4 nanotube	50	2300	918 after 25 cycles	48