Method for making monolithic metal oxide aerogels
Abstract
Transparent, monolithic metal oxide aerogels of varying densities are produced using a method in which a metal alkoxide solution and a catalyst solution are prepared separately and reacted. The resulting hydrolyzed-condensed colloidal solution is gelled, and the wet gel is contained within a sealed, but gas permeable, containment vessel during supercritical extraction of the solvent. The present invention is especially advantageous for making metal oxides other than silica that are prone to forming opaque, cracked aerogels.
- Inventors:
-
- Livermore, CA
- Issue Date:
- Research Org.:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- OSTI Identifier:
- 869777
- Patent Number(s):
- 5395805
- Assignee:
- Regents of University of California (Oakland, CA)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
C - CHEMISTRY C03 - GLASS C03C - CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS
- DOE Contract Number:
- W-7405-ENG-48
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- method; monolithic; metal; oxide; aerogels; transparent; varying; densities; produced; alkoxide; solution; catalyst; prepared; separately; reacted; resulting; hydrolyzed-condensed; colloidal; gelled; wet; contained; sealed; gas; permeable; containment; vessel; supercritical; extraction; solvent; especially; advantageous; oxides; silica; prone; forming; opaque; cracked; oxide aerogels; metal alkoxide; supercritical extraction; containment vessel; metal oxide; metal oxides; gas permeable; varying densities; colloidal solution; monolithic metal; alkoxide solution; catalyst solution; oxide solution; prepared separately; /501/423/516/
Citation Formats
Droege, Michael W, Coronado, Paul R, and Hair, Lucy M. Method for making monolithic metal oxide aerogels. United States: N. p., 1995.
Web.
Droege, Michael W, Coronado, Paul R, & Hair, Lucy M. Method for making monolithic metal oxide aerogels. United States.
Droege, Michael W, Coronado, Paul R, and Hair, Lucy M. Sun .
"Method for making monolithic metal oxide aerogels". United States. https://www.osti.gov/servlets/purl/869777.
@article{osti_869777,
title = {Method for making monolithic metal oxide aerogels},
author = {Droege, Michael W and Coronado, Paul R and Hair, Lucy M},
abstractNote = {Transparent, monolithic metal oxide aerogels of varying densities are produced using a method in which a metal alkoxide solution and a catalyst solution are prepared separately and reacted. The resulting hydrolyzed-condensed colloidal solution is gelled, and the wet gel is contained within a sealed, but gas permeable, containment vessel during supercritical extraction of the solvent. The present invention is especially advantageous for making metal oxides other than silica that are prone to forming opaque, cracked aerogels.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1995},
month = {1}
}
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Works referenced in this record:
Inorganic oxide aerogels
journal, February 1976
- Teichner, S. J.; Nicolaon, G. A.; Vicarini, M. A.
- Advances in Colloid and Interface Science, Vol. 5, Issue 3
Structure and physical properties of V2O5 gels containing GeO2
journal, May 1990
- Hirashima, Hiroshi; Sudo, Kazumi
- Journal of Non-Crystalline Solids, Vol. 121, Issue 1-3