Method for making monolithic metal oxide aerogels

Patent · Tue Mar 07 00:00:00 EST 1995

OSTI ID:27697

Droege, M W; Coronado, P R; Hair, L M

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. 6 figs.

• Research Organization: Univ. of California (United States)
• DOE Contract Number: W-7405-ENG-48
• Assignee: Univ. of California, Oakland, CA (United States)
• Patent Number(s): US 5,395,805/A/
• Application Number: PAN: 8-036,997
• OSTI ID: 27697
• Resource Relation: Other Information: PBD: 7 Mar 1995
• Country of Publication: United States
• Language: English

Related Subjects

40 CHEMISTRY
36 MATERIALS SCIENCE
GELS
CHEMICAL PREPARATION
OXIDES
DENSITY
ALKOXIDES
CATALYSTS
CHEMICAL REACTIONS
HYDROLYSIS
SUPERCRITICAL GAS EXTRACTION