EFFECT OF THE METHOD OF PREPARATION ON THE TEXTURE OF TIO2-SIO2 GELS

被引:24
作者
RAMIREZDELSOLAR, M [1 ]
DELAROSAFOX, N [1 ]
ESQUIVIAS, L [1 ]
ZARZYCKI, J [1 ]
机构
[1] UNIV MONTPELLIER 2,SCI VITREOUS MAT LAB 1119,F-34060 MONTPELLIER,FRANCE
关键词
D O I
10.1016/0022-3093(90)90110-8
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
The chemical reactivity of Ti(OBun)4 was modified through the addition of acetic acid to obtain sonogels of the TiO2SiO2 system by ultrasonic treatment of the alkoxide-water mixture. The characteristics of the resulting gels were compared with those of similar standard gels prepared in alcoholic solution. The influence of composition and method of preparation on the gels was studied. The results of density and BET measurements, thermal analysis and IR spectroscopy indicate that ultrasound drastically affects the texture. © 1990.
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页码:84 / 89
页数:6
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