| 초록 |
Activated carbon nanofibers was prepared by electrospinning the mixed polymer solution, consisted of PAN and PVP in DMF. The ratios of PAN to PVP was 8:2, 7:3, and 6:4. When PVP content increased to 30 wt%, the diameter of carbon nanofibers gradually decreased. For 40 wt% PVP, their diameter rather increased by forming beads to electrospun nanofibers caused by the effect of the decreased viscosity. With PVP content increasing to 30 wt%, the profile of CV showed more expanded rectangle-like shape, the area of rectangle decreased a little. The reason for the best electrochemical performance for 30 wt% PVP-added carbon nanofibers is that ion mobility get to be facilitated by increasing surface area with more mesoporosity. |
