Method for making monolithic metal oxide aerogels

Patent · Thu Dec 31 23:00:00 EST 1998

OSTI ID:872537

Coronado, Paul R ^[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 containment vessel is enclosed within an aqueous atmosphere that is above the supercritical temperature and pressure of the solvent of the metal alkoxide solution.

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA
• DOE Contract Number: W-7405-ENG-48
• Assignee: Regents of University of California (Oakland, CA)
• Patent Number(s): US 5958363
• OSTI ID: 872537
• Country of Publication: United States
• Language: English

Related Subjects

/423/501/
aerogels
alkoxide
alkoxide solution
aqueous
atmosphere
catalyst
catalyst solution
colloidal
colloidal solution
contained
containment
containment vessel
critical temperature
densities
enclosed
extraction
gas
gas permeable
gelled
hydrolyzed-condensed
metal
metal alkoxide
metal oxide
method
monolithic
monolithic metal
oxide
oxide aerogels
oxide solution
permeable
prepared
prepared separately
pressure
produced
reacted
resulting
sealed
separately
solution
solvent
supercritical
supercritical extraction
supercritical temperature
temperature
transparent
varying
varying densities
vessel
wet