Preparation of functional silica aerogels using ionic liquids as solvents

被引：0
作者：
Yuan, CY
Dai, S
Wei, Y
Chen-Yang, YW
机构：
[1] Oak Ridge Natl Lab, Div Chem Technol, Oak Ridge, TN 37831 USA
[2] Drexel Univ, Dept Chem, Philadelphia, PA 19104 USA
[3] Chung Yuan Christian Univ, Dept Chem, Chungli 320, Taiwan
来源：
IONIC LIQUIDS: INDUSTRIAL APPLICATIONS FOR GREEN CHEMISTRY | 2002年 / 818卷
关键词：
D O I：
暂无
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A new methodology has been developed to prepare functional silica aerogels using ionic liquids. This methodology makes use of the unique solvent properties of ionic liquids (negligible vapor pressure and ionicity), allowing application of long aging times without macroscopic phase segregation between ionic liquids and the silica network. The long ambient aging time also ensures development of stable silica networks so that the ionic liquids can be extracted and dried without collapse of the silica network.
引用
收藏
页码：106 / 113
页数：8
相关论文
共 23 条
[1]   Colloidal gold aerogels: Preparation, properties, and characterization [J].
Anderson, ML ;
Morris, CA ;
Stroud, RM ;
Merzbacher, CI ;
Rolison, DR .
LANGMUIR, 1999, 15 (03) :674-681
[2]  
Böttcher H, 1999, ADV MATER, V11, P138
[3]   Influence of structural variation in room-temperature ionic liquids on the selectivity and efficiency of competitive alkali metal salt extraction by a crown ether [J].
Chun, S ;
Dzyuba, SV ;
Bartsch, RA .
ANALYTICAL CHEMISTRY, 2001, 73 (15) :3737-3741
[4]   Comparative UV-Vis studies of uranyl chloride complex in two basic ambient-temperature melt systems: The observation of spectral and thermodynamic variations induced via hydrogen bonding [J].
Dai, S ;
Shin, YS ;
Toth, LM ;
Barnes, CE .
INORGANIC CHEMISTRY, 1997, 36 (21) :4900-4902
[5]   Preparation of silica aerogel using ionic liquids as solvents [J].
Dai, S ;
Ju, YH ;
Gao, HJ ;
Lin, JS ;
Pennycook, SJ ;
Barnes, CE .
CHEMICAL COMMUNICATIONS, 2000, (03) :243-244
[6]  
DAI S, UNPUB
[7]   Room temperature ionic liquids as novel media for 'clean' liquid-liquid extraction [J].
Huddleston, JG ;
Willauer, HD ;
Swatloski, RP ;
Visser, AE ;
Rogers, RD .
CHEMICAL COMMUNICATIONS, 1998, (16) :1765-1766
[8]  
Husing N., 1998, ANGEW CHEM INT EDIT, V37, P22
[9]   ROOM-TEMPERATURE HALOALUMINATE IONIC LIQUIDS - NOVEL SOLVENTS FOR TRANSITION-METAL SOLUTION CHEMISTRY [J].
HUSSEY, CL .
PURE AND APPLIED CHEMISTRY, 1988, 60 (12) :1763-1772
[10]  
Lowry T.H., 1976, MECH THEORY ORGANIC
123