水热均匀沉淀法合成中孔氧化锆  

Synthesis of Mesoporous Zirconia with Hydrothermal Homogeneous Precipitation Method

作　　者：程虎民[1] 马玉荣[1] 廖复辉[1] 马季铭[1] 齐利民[1] 

机构地区：[1]北京大学化学与分子工程学院,北京100871

出　　处：《物理化学学报》2003年第4期326-328,共3页Acta Physico-Chimica Sinica

基　　金：国家自然科学基金(20233010;20003001)资助项目~~

摘　　要：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.

关 键 词：水热均匀沉淀法 合成 中孔氧化锆 尿素 沉淀剂 中孔分子筛 催化剂 

分 类 号：O614.412[理学—无机化学]