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分别以室温离子液体 1 丁基 3 甲基 咪唑四氟硼酸盐和 1 己基 3 甲基 咪唑四氟硼酸盐为介质 ,采用有机化合物热分解的方法制备了尺寸和结构均可控的金属Ni纳米微粒 .采用X射线衍射仪、透射电子显微镜和傅立叶红外光谱仪对所制备的样品进行了结构表征 .X射线衍射结果表明 :以 1 丁基 3 甲基 -咪唑四氟硼酸盐为介质制备的Ni纳米微粒具有立方相结构 ,而以 1 己基 3 甲基 -咪唑四氟硼酸盐为介质制备的Ni纳米微粒具有六方相结构 .透射电子显微镜结果表明 :随着反应原料浓度的不同所制备的纳米微粒具有不同的粒径 .傅立叶红外光谱表明 :离子液体不但作为反应的介质而且作为修饰剂修饰在了Ni纳米微粒的表面 ,从而有效地阻止了Ni纳米微粒的团聚和氧化 .
Respectively, at room temperature ionic liquid 1 butyl 3 methyl imidazolium tetrafluoroborate and 1 hexyl 3 methyl imidazole tetrafluoroborate as a medium, the use of organic compounds thermal decomposition of the size and structure were prepared metal Ni Nanoparticles were prepared by X-ray diffraction, transmission electron microscopy and Fourier transform infrared spectroscopy.The prepared samples were characterized by X-ray diffraction (XRD) .The results showed that the prepared nanoparticles were prepared by using 1-butyl-3-methylimidazolium tetrafluoroborate Ni nanoparticles have a cubic phase structure, and Ni nanoparticles prepared with 1 hexyl 3 methylimidazolium tetrafluoroborate as a medium have a hexagonal phase structure. Transmission electron microscopy results show that: with the reaction of the raw material concentration of different prepared Nanoparticles have different particle sizes.The FT-IR spectra indicate that the ionic liquid is not only used as the reaction medium but also modified on the surface of Ni nanoparticles, effectively preventing the agglomeration and oxidation of Ni nanoparticles.