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通过以二氧化硅粒子作为模板和金纳米粒子为表面晶种的方法制备了壳厚度可控的镍空心球。采用TEM﹑XRD对二氧化硅/镍复合球和镍空心球进行了表征和研究。结果表明镍纳米壳是由似针状的面心立方的镍纳米粒子构成的,碱溶液处理过程不影响镍纳米壳的形貌。高温处理显示镍空心球具有良好的热稳定性。
Nickel hollow spheres with controlled shell thickness were prepared by using silica particles as templates and gold nanoparticles as the surface seeds. The silica / nickel composite balls and nickel hollow spheres were characterized and studied by TEM and XRD. The results show that the nickel nanoshells are composed of needle-like face-centered cubic nickel nanoparticles, and the alkaline solution treatment does not affect the morphology of nickel nanoshells. High temperature treatment shows that nickel hollow spheres have good thermal stability.