| 초록 |
During a heat treatment process under air, oxygen functional groups are introduced into the pitch, it becomes an infusible state. It also change by the heat treatment time, with increasing the treatment time, C-O is changed to C=O. These introduced functional groups generate carbon dioxide or carbon monoxide, in this process, the carbon materials are formed a porous structure. In this study, it is investigated that the effect of oxygen functional groups in the pitch during the activation process. The oxygen functional group of pitch was controlled by heat treatment time under air condition, and the activation property of the pitch was determined. The oxygen content of the pitch and the type of oxygen functional group were investigated by XPS analysis. The activation was proceeded by chemical activation, and the pore characteristics of prepared activated carbon was examined by BET analysis. |
