水热均匀沉淀法合成中孔氧化锆

Synthesis of Mesoporous Zirconia with Hydrothermal Homogeneous Precipitation Method

以尿素为均匀沉淀剂,用水热法合成了中孔ZrO2前体,经热处理(500～550℃,2h)得到晶态(t或m相)短程有序中孔ZrO2.BJH脱附孔径约为4～6nm,BET比表面积约为60～90m2·g-1.

Using urea as homogeneous precipitant, the precursor of mesoporous zirconia was synthesized by hydrothermal. method. After heat-treament at 500 similar to 550 degreesC for 2 h, the crystalline (t or m phase) mesoporous zirconia with short-range order was prepared. Their BJH desorption pore size and BET surface area are about 4 similar to 6 nm and 60 similar to 90 m(2) (.) g(-1), respectively.