The invention relates to a 3D
honeycomb-like foam carbon material, a preparation method and applications thereof, and belongs to the technical field of materials. According to the method,
Fagopyrum tataricum is used as a
raw material, an alkali solution is used as an activator, a gel is formed and dried, the dried gel is carbonized, and finally
impurity removing, washing and
drying are performed to prepare the 3D
honeycomb-like foam carbon material. According to the present invention, the method has characteristics of simpleness, easy operation, mild reaction condition, convenient post-treatment, high yield (24.5%) and low cost, and is suitable for large-scale industrial production; and the obtained carbon material has a
honeycomb-like multi-level pore structure, and a large number of micropores and mesopores are uniformly distributed on the single layer plane; with the application of the 3D honeycomb-like foam carbon material as an electrochemical
capacitor electrode material, the 3Dhoneycomb-like foam carbon material has excellent
electrochemical energy storage performance, and is the excellent
electrode material; and the 3D honeycomb-like foam carbon material can be further developed into a
supercapacitor, and has potential and broad application prospects in the field of
electrochemical energy storage.