以八水氯氧化锆和二水乙酸锂为前驱体、乙二醇为络合剂、1,2-环氧丙烷为凝胶促进剂、聚氧乙烯为相分离诱导剂,采用溶胶-凝胶伴随相分离法制备Li掺杂ZrO_2多孔块体材料,并利用差热分析(DTA)、X-射线衍射(XRD)、红外光谱(FT-IR)和扫描电子显微镜(SEM)等测试技术对所形成的多孔块体的物相和微观结构进行了表征。结果表明,PEO能诱导体系发生相分离,获得共连续骨架和孔径大小可控的多孔块体;热处理后,Li掺杂ZrO_2得到的Li2ZrO3在较大温度范围内始终保持四方相,使其在CO_2吸附应用中具备良好的前景。 Using octahydrate zirconium oxychloride and lithium acetate dihydrate as precursors, ethylene glycol as the complexing agent, 1,2-propylene oxide as the gel accelerator and polyoxyethylene as the phase separation inducer, the sol-gel Li doped ZrO 2 porous block material was prepared by phase separation method and characterized by differential thermal analysis (DTA), X-ray diffraction (XRD), infrared spectroscopy (FT-IR) and scanning electron microscopy (SEM) The phase and microstructure of the formed porous mass were characterized. The results show that PEO can induce the phase separation of the system and obtain a co-continuous framework and a porous block with controlled pore size. After heat treatment, Li2ZrO3 obtained from Li-doped ZrO 2 remains tetragonal in a wide range of temperature, Adsorption applications have good prospects.