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Title: 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:
 [1];  [1];  [1]
  1. Livermore, CA
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
OSTI Identifier:
869777
Patent Number(s):
5395805
Assignee:
Regents of University of California (Oakland, CA)
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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