Cationic templating with organic counterion for superstable mesoporous silica

被引：0
|
作者：
Reinert, P
Garcia, B
Morin, C
Badiei, A
Perriat, P
Tillement, O
Bonneviot, L
机构：
[1] Ecole Normale Super Lyon, Lab Chim Theor & Mat Hybrides, F-69364 Villeurbanne, France
[2] Inst Rech Catalyse, F-69626 Villeurbanne, France
[3] Inst Natl Sci Appl, CNRS, UMR 5510, GEMPPM, F-69621 Villeurbanne, France
[4] Lab Phys Chim Mat Luminescents, F-69622 Villeurbanne, France
[5] Univ Laval, Dept Chem, Ste Foy, PQ G1K 7P4, Canada
来源：
NANOTECHNOLOGY IN MESOSTRUCTURED MATERIALS | 2003年 / 146卷
关键词：
D O I：
暂无
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Superstable mesoporous silicas LUS-1 templated using cationic surfactants of various chain lengths were synthesized in the presence of tosylate anions in basic media with low surfactant to silicium ratios. The highly structured hexagonal silica mesophases are stable in boiling water for several days and, after calcination up to 1093 K. A stabilizing hydrothermal treatment before calcination further improves the stability up to 1273 K. It is believed that the outstanding stability of the LUS-1 is related to the hydrophobic control obtained using an organic surfactant counterion in the surfactant-silicate interface during polycondensation.
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页码：133 / 136
页数：4
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