METHOD FOR REMOVING SURFACE FUNCTIONAL GROUPS OF ACTIVE CARBON USING COKE MATERIALS

摘要

The present invention relates to a method for removing a surface functional group of activated carbon using cokes as raw materials, capable of improving electrical properties by removing a surface functional group of activated carbon using cokes as raw materials. The method of the present invention comprises: a carbonizing step for carbonizing the cokes at a temperature of 400 to 800°C; a grinding step for grinding the carbonized cokes; an activating step for mixing the ground cokes and an activating agent, and heating the same at 400 to 1200°C to be activated; a cleaning/drying step for cleaning and drying the cokes activated carbon; and a surface functional group removing step for removing the surface functional group by performing heat treatment on the cleaned and dried cokes activated carbon. The method of the present invention is provided to manufacture activated carbon by using the cokes, and effectively removes the surface functional group, thereby providing excellent electrical properties.