| 초록 |
In this study, porous carbons with high porosity were synthesized by chitosans which known as abundant polysaccharide. The precursors were carbonized at 900℃, 1 hr, and N2 flow conditions using chitosans as carbon precursor. After carbonized, porous carbons was synthesized by chemical activation. The effect on quantity of activation reagents was investigated by experience of carbon precursor/chemical reagent mass ratio. The structural information of the activated carbons was measured by X-ray diffraction (XRD) patterns and scanning electron microscopy (SEM). The N2 adsorption-desorption isotherms were measured at 77 K and calculated by Brunauer-Emmett-Teller (BET) equation. Methane storage capacity was evaluated with a Model BEL-HP instrument (BEL Co., Ltd., Japan) at 298 K and 35 bar. |
