氧化钨纳米棒的制备及其形貌控制

Study on Preparation of Nanometer Tungsten Oxide Nanorods and Its Morphology

报道了一种利用溶胶-凝胶法和水热法相结合制备纳米氧化钨的新方法.首先在丙醇-四丁基溴化铵-环己烷体系中,由钨酸钠和盐酸反应出发制备凝胶状的钨酸,然后将其置于高压反应釜中200℃下处理12 h即可制得氧化钨纳米棒.使用X-射线衍射分析仪(XRD)和扫描电子显微镜(SEM)对产物的结构与形貌进行表征.

A new method of preparing tungsten oxide nanorobs by sol-gel method combined with hydrothermal method is provided. Firstly,microemulsion was prepared with sodium tungstate and hydrochloric acid in isopropyl alcohol medium containing tetrabutyl ammonium bromide and cyclohexane. The microemulsion product was converted into tungsten oxide nanorobs by dealing for 12 h at 200 ℃ in high pressure PTFE kettle. The samples were characterized by scanning electron microscopy（SEM） and X-ray diffractometer（XRD）.