| 초록 |
The effect of the surface area of carbon source on the carbothermal reduction of ZnO is investigated. For a systematic comparison, various carbon sources with different surface area were used at the same experimental condition. Depending on the surface area, the carbothermal reduction at 800°C for 30min resulted in Zn-silicate island or ZnO nanorod, and these structures were characterized with a scanning electron microscopy, a transmission electron microscopy, and an x-ray photoelectron spectroscopy. The results show that the reducing power of ZnO(S) source into Zn(g) vapor is strongly dependent on the surface area of carbon source, and that the fabrication of ZnO nanostructure can be performed more efficiently by using carbon source with large surface area. |
