초록 |
Carbon foams with hierarchical pore structures were prepared by carbonizing polydivinylbenzene (DVB) foams through a high internal phase emulsion template. To maintain the macroporous structure of the precursor and increase the specific surface area by creating micropores and mesopores, the foam was activated with KOH before carbonization. In addition, a sulfonyl bridge was introduced by sulfonating the DVB foam to uphold its structure and shape when carbonizing it. To evaluate the performance of carbon foam as an electrode material for supercapacitors, an electrode slurry using carbon foam was prepared and specific surface area and electrochemical characteristics were analyzed. |