Pd,Ag,Pt及其化合物微纳米材料的形貌调控及性能研究

钯、银、铂等贵金属及其化合物微纳米材料由于其独特的光学、电学、催化及生物传感等性能引起了广泛的关注。本项目在前期工作的基础上，利用晶体结构生长的各向异性生长纳米结构，通过与其他合成方法的有机结合，设计合成几种结构新颖、形貌、组成、结构可控的贵金属单质及化合物微/纳米结构材料；考察反应参数（如：前驱体种类、形貌、尺寸及浓度、反应温度及表面活性剂种类等因素）对产物的形貌及微观结构的影响，研究微纳米材料的生长动力学，掌握影响生长过程关键因素，揭示生长机理；选定4-6种结构清晰、形貌规则的样品, 进行光、电、热、催化及传感等性能的测试，结合理论模拟与计算，探究结构性能的关系，反馈指导材料设计与合成，力争通过微观结构的调节实现宏观性质的可控；为贵金属及其化合物微纳米材料的制备及相关研究提供借鉴。

Due to their unique optical, electrical, catalytic and bio-sensing properties, micro- and nano- materials based on noble metals such as Pd, Ag, Pt and their compounds have drawn great attention. Taking advantage of the anisotropy of crystal growth on the basis of the preliminary work, we design and synthesize several kinds of novel micro- and nano- materials based on noble metals and their compounds with controllable morphology, structure and composition in combination with other synthesis methods. The influence of various experimental parameters, for example, the composition, size, morphology and concentration of precursors, temperature and type of surfactant, etc. toward the products morphology and microstructure is investigated to study the growth kinetics of micro- and nano- materials to find the key factor that affects the growth and reveal the growth mechanism. On the basis of 4-6 well-organized materials with uniform morphology, optical, electrical, catalytic, thermal and sensing test are then conducted combined with theoretical simulation and calculation to explore the structure/property relationship which in return instructs the material design and synthesis. Through this project, we expect to synthesize materials with controllable macroscopic performance by regulating their micro-structures and then to provide reference for research of micro- and nano- materials based on noble metals and their compounds.