摘要：利用滚压振动磨在干法室温条件下,将金属锌制备成为尺度大约在3～5nm的锌量子点,并将纳米锌量子点加热到250℃并与水蒸气进行反应,得到纳米氧化锌与纳米锌的混合物。分别利用能量发射谱仪(EDS)、X射线多晶体衍射仪(XRD)、透射电镜(TEM)测试样品的化学成分和表面形貌。结果表明:锌粉加热到250℃与水蒸气反应得到的产物具有良好的分散性,其特征是棒状和片状结构共存,纳米棒有明显的沿着[0,1,-1,1]晶向的生长趋势。一维ZnO纳米棒材料对应于初始锌纳米晶颗粒,与其他方法中ZnO的生长机制不同,可以认为本文中的ZnO的生长遵从顶端生长机制。

关键词：气-固反应;纳米结构；水解反应；生长机制

Abstract：The roller vibration mill was used to manufacture zinc quantum dots of 3~5 nm in dry mode and at room temperature， then the zinc quan tum dots were hydrolyzed with steam under different temperature to obtain hybrid of ZnO and Zn nano-structures. The as-synthesized particles were characterized by XRD， TEM. The results showed that the nano-structure synthesized under 250 ℃ had the highest dispersivity featuring nano-flakes with nano-rods， that grew along the [0，1，-1，1] direction. The ZnO nano-rod grew related with nano-crystalline Zn， and top-up model was proposed for interpreting the nano-rod growth mechanism. 

Keywords：gas-solid reaction； nano-structure； hydrolyzation； growth mechanism