颗粒表面微结构形态的化学控制对策

Chemical Tuning Strategy for Surface Microstructure of Particles

为了探索新型功能材料的先进制备技术,针对具有优异光、电性能的功能材料如ZnO、ZnS、LiNbO3、铜盐、镁盐等,采用溶液反应从热力学和动力学两个重要因素出发,合理调控其颗粒的微观生长机制,以便在形貌、尺度以及性能等方面对这些材料实施设计与优化。通过调控溶液的pH值、反应物浓度、反应时间、反应温度等参数获得了核壳结构、空心结构等多形貌的功能材料,赋予了这些材料新的功能与特性。同时从实际应用的角度总结了颗粒表面微结构形态控制的化学研究手段,以期引导同一领域的研究开发工作。

A series chemical tuming strategy for new functional materials such as ZnO,ZnS, LiNbO3, copper salt compounds, and magnesium salt compounds were investigated, due to their excellent optical and electrical properties. In order to optimize the shape ,scale ,and performance of these functional materials,new methods were well designed to control the growth behaviors of microparticles in solution from both thermodynamics and kinetics factors. The above-mentioned functional materials with core/shell structure, hollow structure,etc,were prepared by a careful study of pH and concentration of solution,reaction time and temperature. For the industrial purpose ,the fabrication techniques and applications of these functional materials, particularly chemical strategies for tuning the surface microstructure of particles are summarized, which can guide the research and development work in this field and related directions.