| abstract |
The invention relates to the technical field of supercapacitor materials, and specifically discloses a composite material, a preparation method thereof, and a supercapacitor. Wherein, the preparation method of the composite material includes the following steps: mixing and dissolving the iron source, the precipitating agent and the surface morphology agent in a solvent to obtain a mixed solution; performing a hydrothermal reaction treatment on the mixed solution to obtain a precursor; The precursor is subjected to a heating reaction treatment to obtain a composite material; the composite material includes C and Fe 3 O 4 and has a micro-nano-scale flower-like morphology. The composite material obtained by the preparation method of the invention includes C and Fe 3 O 4 , has a micro-nano-scale flower-like shape, is not easy to agglomerate, and has a large specific surface area, thus showing relatively excellent electrochemical performance. |