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用X-射线衍射、原子吸收、差热热重、化学分析等方法测定了交换La3+离子NaX型分子筛的物相及组成。用交流阻抗谱仪测量了其离子电导。由电导率随温度的变化得到NaX的Na+电导表观活化能为38．8kJ／mol，适度交换La3+，NaLaX的Na+电导表观活化能降低至27．9kJ/mol。讨论了交换La3+对分子筛中Na+迁移扩散的影响。
The phase and composition of exchanged La3 + NaX zeolite were determined by X-ray diffraction, atomic absorption, TG-DTA and chemical analysis. The ion conductivity was measured by AC impedance spectroscopy. The apparent activation energy of Na + conductance of NaX was 38.8kJ / mol, and the modest activation energy of Na + conductance of NaLaX was reduced to 27.9kJ / mol by the change of conductivity with temperature. The effect of exchange La3 + on Na + migration and diffusion in zeolites was discussed.