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中文摘要：
以山嵛酸（BA）Langmuir膜为仿生矿化模板，结合氨气动态扩散控制方法，在气-液界面上制备了取向单一的Zn5（OH）8（NO3）2·2H2O分形结构材料．利用扫描电子显微镜（SEM）和X射线衍射（XRD）分别对样品形貌及其晶型进行了表征．结合π-A曲线研究了分形结构生长的驱动力，并详细分析了分形生长的过程和机理．认为Langmuir膜的存在导致了材料单一的晶面取向，而氨气在气一液界面的动态扩散提供了分形结构形成的驱动力．这有可能为控制合成一系列具有特殊结构的无机晶体材料提供一种可行的方法．
英文摘要：
Fractal structures of Zns（OH）8（NO3）2·2H2O with a good orientation were fabricated at air-liquid interface by a novel method, in which, a behenic acid （BA） Langmuir monolayer was used as the biomineralization template, and ammonia vapor diffusion was introduced to provide an addition of kinetic control. The surface morphology and crystallinity of the specimens were characterized by means of scanning electron microscopy （SEM） and X-ray diffraction （XRD）. The driving force in the fractal growth was investigated by the π-A curve studies, and the process and mechanism of fractal growth were discussed in detail. It was suggested that the presence of the BA Langmuir monolayer was responsible for the good orientation of the specimens, and the kinetically controlled diffusion of ammonia at the air-liquid interface provided a driving force for the fractal growth. This research may provide a feasible method to synthesize a series of specially structural inorganic materials.
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