| 초록 |
Natural gas has attracted as promising fuels as alternative energy source due to cheap, clean, and abundance. The efficient porous materials are essential for application of gas storage materials. In this study, nitrogen-enriched porous carbons were prepared by natural polymer chitosans. The N2 adsorption-desorption isotherms were measured at 77 K and calculated by Brunauer-Emmett-Teller (BET) equation. The pore size distributions were investigated using non-local density functional theory (NLDFT). The morphology of prepared material was observed using scanning electron microscopy (SEM). Methane uptakes were evaluated with a Model BEL-HP instrument (BEL Co., Ltd., Japan) at 298 K and pressure range 5─35 bar using pressure swing asroption (PSA) method. |
