高比表面积、内部连通有序网络结构的ZrO2三维有序大孔材料,在太阳能电池、锂电池、化学催化等领域具有重要的应用前景。采用聚苯乙烯胶体晶体为模板,ZrOCl2.8H2O为锆源,通过高温热解法获得ZrO2三维有序大孔结构。采用扫描电子显微镜、透射电子显微镜、能量色散谱以及红外光谱对三维有序大孔孔壁的显微结构和化学组成等特性进行研究。结果表明:通过改变热处理温度和聚苯乙烯球尺寸,可对三维有序大孔结构进行调控;在450~550℃煅烧温度范围内,可得到表面负载有—C—O基团的单斜相ZrO2三维有序大孔材料。
Three-dimensional ordered macroporous (3DOM) zirconia (ZrO2) with high surface area and ordered interconnected network structure can be applied to the solar cell, lithium battery and catalytic process. In this work, 3DOM ZrO2 was prepared via the infiltration of ZrOCl2?8H2O solution into the polystyrene (PS) colloidal crystal template and subsequent heating treatment. The characteristics of wall of ordered macrospores are closely related to application performance of 3DOM ZrO2. The characteristics of pore wall of 3DOM ZrO2, such as the microscopic structure and chemical composition, were investigated by scanning electron microscopy, transmission electron microscopy, energy dispersive spectrometry and infrared spectroscopy, respectively. Moreover, the porous structure of 3DOM can be tuned via changing both of heating temperature and size of PS spheres. The monoclinic 3DOM ZrO2 with —C—O groups was obtained when calcinated in the temperature range from 450 to 550 ℃.