| 초록 |
In this study, activated carbons (AC) with high microporosity were synthesized by nitrogen-enriched precursors. The precursors were carbonized at 900℃, 1 hr, and N2 flow conditions. After carbonized, AC was synthesized by chemical activation. The effect of quantity of activation reagents was investigated by experience of AC/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. The microporosities of samples were evaluated using non-local density functional theory (NLDFT). Methane storage capacity was evaluated with a Model BEL-HP instrument (BEL Co., Ltd., Japan) at 298 K and 35 bar. |
