Method for making monolithic metal oxide aerogels

Patent · Sun Jan 01 00:00:00 EST 1995

OSTI ID:869777

Droege, Michael W ^[1]; Coronado, Paul R ^[1]; Hair, Lucy M ^[1]

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1. Livermore, CA

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.

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
• DOE Contract Number: W-7405-ENG-48
• Assignee: Regents of University of California (Oakland, CA)
• Patent Number(s): US 5395805
• OSTI ID: 869777
• Country of Publication: United States
• Language: English

Related Subjects

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
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