| 초록 |
Porous carbon materials have been prepared using polysaccharides (cellulose, chitosan, alginic acid) as raw materials by heat treatment at nitrogen atmosphere. The prepared carbons were activated under ammonia atmosphere at high temperature. Most prepared carbons contained both of micro- and mesoporous pore structures. The surface areas of prepared carbons increased from 258.2 to 1032.0 m2 g-1 and pore volumes also increased from 0.15 to 0.65 cm3 g-1 after the ammonia activation process. Coin cell type electric double layer capacitor (EDLC) was assembled and the capacitance was measured. |
