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分别采用十六烷基三甲基溴化铵(CTAB)、CTAB-EG(乙二醇)模板法和CTAB-EG-NaCl法(即以一定量的NaCl填充由CTAB-EG模板法所得前驱体的孔道)制备出Ce0.6Zr0.35Y0.05O2(CZY)固溶体纳米粒子,并利用X射线衍射、高分辨扫描电子显微镜、透射电子显微镜、选区电子衍射及N2吸附-脱附等技术表征了这些材料的物理性质.结果表明,3种方法制备的Ce0.6Zr0.35Y0.05O2样品都具有虫孔状介孔立方晶相结构,孔径分布窄(平均孔径5.3~7.1nm),比表面积高(95~119m2·g?1),孔容大(0.16~0.18cm3·g?1).NaCl的引入有利于在较高温度下合成多孔固体纳米材料时保持孔道结构.
Cetyltrimethylammonium bromide (CTAB), CTAB-EG (ethylene glycol) template method and CTAB-EG-NaCl method were used to fill the precursors Ce0.6Zr0.35Y0.05O2 (CZY) solid solution nanoparticles were prepared and characterized by X-ray diffraction, high-resolution scanning electron microscopy, transmission electron microscopy, selected area electron diffraction and N2 adsorption-desorption The results show that the Ce0.6Zr0.35Y0.05O2 samples prepared by the three methods all have the mesoporous cubic mesoporous structure with a narrow pore size distribution (average pore size 5.3 ~ 7.1nm) and high specific surface area (95 ~ 119m2 · g-1), pore volume is large (0.16 ~ 0.18cm3 · g-1) .The introduction of NaCl can help maintain the pore structure during the synthesis of porous solid nanomaterials at higher temperatures.