| 초록 |
Tungsten oxide has been widely studied for applications in electrochromic devices, semiconductor gas sensors, and photocatalysis. In this report, tungsten oxide nanorods and nanowires have been synthesized by solvothermal synthesis using tungsten hexachloride (WCl6) dissolved in various alcohols as starting solution. The structure and composition of nanorods and nanowires were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM/EDS) and transmission electron microscopy (TEM). The synthesized tungsten oxide nanorods/nanowires are W18O49 among various tungsten oxide systems and grew along ＜010＞ direction from HRTEM results. The tungsten nanorods were 30nm in diameter and 300nm in length, the tungsten nanowires were 30nm in diameter and 2μm in length. Relationship between morphology and composition of tungsten nanorods and nanowires was discussed. |
