Liu Yang, Chu Ying, Li Li-Li, Dong Li-Hong, Zhuo Yu-Jiang
Department of Chemistry, Northeast Normal University, Changchun, Jilin 130024, PR China.
Chemistry. 2007;13(23):6667-73. doi: 10.1002/chem.200601817.
Well-aligned zinc oxide microrod and microtube arrays with high aspect ratios were fabricated on zinc foil by a simple solution-phase approach in an aqueous solution of ethylenediamine (en). The shape of the ZnO microstructures can be easily modulated from rods to tubes by adding cetyl trimethyl ammonium bromide (CTAB) into the reaction system. Control experiments demonstrate that some reaction parameters, such as the concentration of ethylenediamine, the kind of surfactant, reaction time, and the temperature, all have direct influences on the morphology of the products. Based on the early structure arising from arrested growth (nanosheets), a reasonable mechanism for the growth of ZnO microrods and microtubes has been proposed. The products were characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and photoluminescence emission.
通过在乙二胺（en）水溶液中采用简单的溶液相法，在锌箔上制备了具有高纵横比的排列良好的氧化锌微棒和微管阵列。通过向反应体系中添加十六烷基三甲基溴化铵（CTAB），可以轻松地将ZnO微观结构的形状从棒状调节为管状。对照实验表明，一些反应参数，如乙二胺的浓度、表面活性剂的种类、反应时间和温度，都对产物的形态有直接影响。基于由生长停滞产生的早期结构（纳米片），提出了一种合理的ZnO微棒和微管生长机制。通过X射线粉末衍射（XRD）、扫描电子显微镜（SEM）、透射电子显微镜（TEM）和光致发光发射对产物进行了表征。
