氧化锆气凝胶的结构、制备及应用  

THE STRUCTURE,SYNTHESIS AND APPLICATIONS OF ZrO_2 AEROGELS

作　　者：张翠娟[1] 赵海雷[1] 程云飞[1] 高峰[1] 李雪[1] 

机构地区：[1]北京科技大学材料学院无机非金属材料系,北京100083

出　　处：《中国陶瓷》2008年第6期3-6,15,共5页China Ceramics

摘　　要：ZrO2气凝胶以其独特性质受到人们的广泛关注。就ZrO2气凝胶的结构、性质和制备方法进行了综述,制备方法包括锆醇盐的水解法,沉淀法,醇-水溶液加热法,直接溶胶-凝胶法和滴加环氧丙烷法,滴加环氧丙烷法是制备高性能ZrO2气凝胶非常有发展潜力的方法之一。最后结合ZrO2气凝胶的性质介绍了其应用,尤其是在催化领域的应用。Zirconia aerogel has been paid great attention for its unique properties. This paper summarizes the structure and various preparation methods of zirconia aerogels. The preparation methods include mainly the hydrolysis of zirconia alk-oxides, precipitation method, heating of alcohol-aqueous salt solutions, direct sol-gel in supercritical fluid and addition of propylene oxide. The addition of propylene oxide method is one of the most potential route for the synthesis of high performance zirconia aerogels. Finally, on the basis of properties of ziconia aerogel, its applications were discussed, especially in the catalytic field.

关 键 词：二氧化锆 气凝胶 结构 制备 应用 

分 类 号：TQ174.758[化学工程—陶瓷工业] O648.17[化学工程—硅酸盐工业]