In this paper, coal-based porous carbon material with different specific surface area and pore size distribution was obtained by adjusting the proportion of KOH to coal based on Taixi anthracite.When the ratio of KOH to coal is 5:1 at the temperature of 800℃ for activation of 2 h, the obtained material has the highest specific surface area and pore volume(3 275 m2/g, 1.62 cm3/g).The adsorption amount of carbon dioxide at 0℃ and 100 kPa was 23.71%.The material is doped with nitrogen by using urea as a nitrogen source.Compound material was prepared through oxidation-reduction reaction on the carbon material loaded with manganese, which is used for a negative electrode material of a lithium ion battery.It exhibits good stability in charge-discharge cycles.The nitrogen and manganese dioxide are helpful to improve the specific capacitance of the material.
