Preparation of porous carbon materials from carboxymethyl cellulose <em>via </em>simultaneous molten salt-assited carbonization and self-template activation for supercapacitors
발표자
()
초록
내용
In this study, porous carbon materials (PCMs) were prepared from carboxymethyl cellulose (CMC) and sodium chloride (NaCl) via simultaneous molten salt-assisted carbonization and self-template activation. The results of the XRD and Raman analyses revealed that the resulting PCMs (CN-x) had amorphous carbon structures. The specific surface area and total pore volume increased up to 1960.07 m²/g and 2.29 cm³/g, respectively, with increasing the amount of NaCl used. The PCM-based electrode showed high specific capacitance of 414.60 F/g at 1.0 A/g, high rate capability of 60.59% at 30 A/g, high power density of 2500 W/kg at 9.45 Wh/kg, and excellent cycle stability of ~100% at 20 A/g after 10,000 cycles. These results suggest that the PCMs prepared in this study via simultaneous molten-salt assisted carbonization and self-template activation are promising for supercapacitor applications.