Table 1.

Comparisons on electrochemical performance of Fe₃O₄ and related carbonaceous composites as supercapacitor electrodes in the present study and literature survey.

Materials	Morphology	Specific Capacitance (F g−1)	Electrolyte	Stability	Ref.
Fe3O4	Hollow microspheres	294 (0.5 A g−1)	8 M KOH	90.8% after 500 cycles	[9]
Fe3O4	Microflowers	183 (1.0 A g−1)	0.5 M Na2SO3	65.0% after 5000 cycles	[10]
Fe3O4	Nanoparticles	383.2 (0.5 A g−1)	1 M Na2SO3	83.6% after 2000 cycles	[11]
Fe3O4	Nanoparticles	169.1 (0.5 A g−1)	1 M KOH	69.2% after 5500 cycles	This work
Fe3O4/C	Nanoparticles/Nanotubes	187.1 (1.0 A g−1)	1 M Na2SO3	80.2% after 1000 cycles	[12]
Fe3O4/C	Nanorods/Nanoparticles	275.9 (0.5 A g−1)	1 M Na2SO3	81.2% after 500 cycles	[13]
Fe3O4/RGO	Nanosheets/Nanosheets	297.0 (4.4 A g−1)	2 M KOH	91.4% after 9600 cycles	[14]
Fe3O4/RGO	Nanorods/Nanosheets	315 (5.0 A g−1)	1 M KOH	95.0% after 2000 cycles	[15]
Fe3O4/RGO	Nanodiscs/Nanosheets	1149 (1.5 A g−1)	6 M KOH	97.5% after 10,000 cycles	[21]
Fe3O4/RGO	Nanoflowers/Nanosheets	454.3 (1.0 A g−1)	2 M KOH	94.0% after 10,000 cycles	[26]
Fe3O4/RGO	Nanoparticles/Nanosheets	317.4 (0.5 A g−1)	1 M KOH	86.9% after 5500 cycles	This work