中文摘要：

采用种子聚合法制备出交联聚苯乙烯（PS）微球，经预处理在微球表面引入官能团，采用化学镀法在微球表面负载纳米级Ni颗粒，利用FI-IR、SEM、XRD等测试手段对其进行表征，结果表明：PS微球粒径均匀，平均粒径约为4.3μm，表面光滑；微球负载的纳米Ni颗粒分散性良好、平均晶粒度为9.41nm。利用负载微球对高氯酸铵（AP）进行催化实验，表明负载微球可使AP高温分解峰降低94.2℃左右。研究表明：采用PS微球负载可提高纳米Ni颗粒的分散性，进而提高了Ni颗粒的催化性能。

英文摘要：

The cross-linked polystyrene micro-spheres were prepared by $ employing the seeded polymerization,and the functional groups were introduced via pretreatment onto the surface of the micro-spheres,on which were loaded with nanometer Ni particles by electroless plating,the composite micro-spheres were characterized by means of FI-IR,SEM,XRD.The results show that PS micro-spheres were of even particle size,and the average particle size is 4.3 μm,and there was no dilapidation on the surface of the micro-spheres;the Ni nanoparticles loaded on the micro-spheres were well dispersed,and the average crystal granularity is 9.41nm.The catalysis experiment of AP was conducted with the loaded micro-spheres,and the peak temperature of high temperature decomposition of AP was decreased by about 94.2℃,as demonstrated in the DSC pattern. The study indicates that the dispersion of Ni nanoparticles loaded on the surface of the micro-spheres can be enhanced with the load of PS micro-sphere,and the catalytic activity of the nanoparticles can be improved.