Table 2.

Energy storage performances of recent Ni-based nanostructured electrode (specific capacity [mAh g⁻¹] values with “~” were calculated from specific capacitance [F g⁻¹] reported in the relative ref.).

Year	Electrode material	Method	Specific capacity [mAh g−1]	Current density [A g−1]	Cycling stability		Ref.
					Cycle number	Retention [%]
2014	Au NP-deposited Ni(OH)2	Hydrothermal + colloidal deposition	~142	20	5000	80	30
2014	Ni(OH)2 nanosheets on Ni foam	Wet environment + solution oxidation	~179	5	3000	75	34
2014	Amorphous Ni(OH)2@3D core-shell nanostructures	Electrodeposition	~269	20	3000	30	19
2015	Ni@NiO core-shell nanoparticles tube arrays	Electrodeposition + oxidation	~110	25	1000	92	20
2015	3D TiO2@Ni(OH)2 core-shell arrays	Hydrothermal + annealing + CBD	178	10	/	/	18
2015	CNT@Ni(OH)2 core-shell composites	CBD	~53	20	1000	92	31
2015	NiMoO4@Ni(OH)2 core/shell nanorods	Hydrothermal + electrodeposition	~328	16	1000	72	35
2016	3D flower-like β-Ni(OH)2	Solvothermal	~37	10	600	90	11
2016	Ni(OH)2/graphene nanosheets	Carbonization + hydrothermal	~156	10	1000	97	15
2017	Ni-Co double hydroxide	Electrodeposition	~140	20	5000	96	32
2018	Ni(OH)2 nanosheets on hollow mesoporous carbon spheres	Solvothermal + precipitation	~154	10	3000	81	33
2018	Ni(OH)2 nanowalls	CBD	63	16	1000	68	This work
2018	Ni(OH)2@Ni core-shell nanochains	CBD + annealing + CV	180	16	1000	83	This work