초록 |
Porous carbon films have been used as electrode materials in various applications, such as capacitive deionization, energy storage and conversion, and electronics. Cellulose is one of the promising precursors for preparation of carbon materials due to its abundance and low cost. In this study, porous carbon films were prepared by heat treatment of cellulose non-woven fabrics. Cellulose non-woven fabrics were stabilized in air at various temperatures and then carbonized under inert atmosphere at 1000 oC. The effect of impregnation of polyacrylonitrile (PAN) into cellulose nonwoven fabrics on the carbonization behavior was also investigated. The prepared porous carbon films were characterized in terms of their chemical structures and compositions, crystalline structures, thermal and electrical properties, and surface morphology. |