| 초록 |
Aerogels are highly porous structures obtained by replacing liquid in a gel structure with air while maintaining the formed gel structure. Particularly, hydrogel-type nanocellulose is one of the important candidates to form aerogels. In this study, carboxymethylated nanocellulose(CNC)-based aerogels were manufactured by freeze-drying method and they were carbonized at different temperatures of 800-1000 °C for supercapacitor electrode material applications. The BET surface area and average pore diameter of the carbon aerogels carbonized at 1000 °C were measured to be ~1508 m2/g and ~1.82 nm, respectively. The structural and morphological features of the CNC-based carbon aerogels were characterized by using SEM and Raman spectroscopy. The electrical and electrochemical properties of the carbon aerogels were analyzed by considering the microstructural features. |
