초록 |
Requirements for alternative renewable and sustainable energy sources such as natural gas was increasing. For practical energy utilization, efficient gas storage materials of alternative fuel are essential. There are various types of adsorption materials studied for gas storage. In this work, polysaccharide-based activated carbons were prepared by chemical activation process. The influence of activation reagent ratios was investigated by experience of activated carbons/chemical reagents 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. |