초록 |
Porous carbon materials have been prepared using carbohydrates such as cellulose, chitosan and alginic acid as precursors by pyrolysis under N2 atmosphere. The specific surface areas and pore volumes of pristine carbons were measured as up to 258.2 m2 g-1 and 0.15 cm3 g-1, respectively. The surface areas and pore volumes of prepared carbons were further increased up to 1032.0 m2 g-1 and 0.65 cm3 g-1 , respectively, after the heat treatment of pristine carbons under NH3 gas atmosphere. The CO2 adsorption capacity of ammonia activated carbon derived from alginic acid was measured as up to 2.20 mmol g-1. |