| 초록 |
In this work, carbon aerogels (CAs) were prepared as adsorbents for hydrogen storage. and electrochemical performances. Synthesized aerogels was carbonized and then activated using CO2 gases. The structural and morphological properties were investigated by X-ray diffraction (XRD) and scanning electron microscope (SEM), respectively. The specific surface area and micropore size distribution were investigated by N2/77 K adsorption isotherms using Brunauer-Emmett-Teller (BET) equation and non-linear density functional theory method. The hydrogen storage capacities were analyzed at 77 K and 1 bar. Electrochemical behaviors were investigated by cyclic voltammetry (CV) in a three-electrode system. From the results, it was found that surface characteristics and porosities played an important role in the capacitance of electrode and hydrogen uptakes. |
