High-rate porous carbon electrode material for super capacitor and preparation method

The invention relates to a hierarchical porous carbon for preparing the electrode material of a super capacitor and a preparation method of the hierarchical porous carbon. The preparation method of the hierarchical porous carbon includes the following steps that: a zinc and cobalt-containing zeolite imidazole compound is prepared; and the zinc and cobalt-containing zeolite imidazole compound is subjected to carbonization treatment under high temperature, so that the hierarchical porous carbon can be obtained. A large number of mesopores and micropores exist in the porous carbon, and the bore diameters of the mesopores and micropores are distributed hierarchically. The formation of the above structure is conducive to the formation of the transmission of electrolyte ions in the porous carbon material and the formation of a double-electric layer. With the hierarchical porous carbon adopted as an electrode active material, the rate capability of the super capacitor is excellent; the zeolite imidazole compound is subjected to carbonization under 800 DEG C, the molar ratio of zinc and cobalt of the zeolite imidazole compound being 1:9, so that the hierarchical porous carbon of which the specific capacitance can achieve 176F/g under 100mV/s scanning speed can be obtained.