The effection of the characterize of SiO2-TiO2 composite aerogels with different method

摘要：

SiO2-TiO2 compound aerogels was prepared through physical and chemical process, respectively. The structure of the obtained aerogel was characterized by XRD、SEM and TEM, and the thermostability of which was analysed with DSC-TG. The results indicated that, the microstructure of both kinds of compound aerogel turned to be TiO2 crystal dispersed in the network of SiO2 aerogel. But the one got by chemical method adopted the sole anatase TiO2 crystal structure, and the other got by physical method adopted anatase and rutile TiO2 crystal structure. The dimensions of chemical prepared TiO2 particles were smaller and more homodispersed than physical prepared, and the HT-thermostability of chemical prepared aerogel was better.

关键词： SiO2-TiO2 composite aerogels structure thermostability

作者: 冷映丽 沈晓冬 崔升 腾凯明

作者单位: 南京工业大学材料科学与工程学院,南京,210009

会议类型: 国际会议

会议名称: 第六届中国国际纳米科技研讨会

会议地点: 成都

会议语种:英文

在线出版日期: 2007-11-19（万方平台首次上网日期，不代表论文的发表时间）