skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Methods for controlling pore morphology in aerogels using electric fields and products thereof

Abstract

In one embodiment, an aerogel or xerogel includes column structures of a material having minor pores therein and major pores devoid of the material positioned between the column structures, where longitudinal axes of the major pores are substantially parallel to one another. In another embodiment, a method includes heating a sol including aerogel or xerogel precursor materials to cause gelation thereof to form an aerogel or xerogel and exposing the heated sol to an electric field, wherein the electric field causes orientation of a microstructure of the sol during gelation, which is retained by the aerogel or xerogel. In one approach, an aerogel has elongated pores extending between a material arranged in column structures having structural characteristics of being formed from a sol exposed to an electric field that causes orientation of a microstructure of the sol during gelation which is retained by the elongated pores of the aerogel.

Inventors:
; ; ; ; ;
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1414912
Patent Number(s):
9,852,824
Application Number:
13/180,440
Assignee:
Lawrence Livermore National Security, LLC (Livermore, CA) LLNL
DOE Contract Number:
AC52-07NA27344
Resource Type:
Patent
Resource Relation:
Patent File Date: 2011 Jul 11
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Worsley, Marcus A., Baumann, Theodore F., Satcher, Jr., Joe H., Olson, Tammy Y., Kuntz, Joshua D., and Rose, Klint A. Methods for controlling pore morphology in aerogels using electric fields and products thereof. United States: N. p., 2017. Web.
Worsley, Marcus A., Baumann, Theodore F., Satcher, Jr., Joe H., Olson, Tammy Y., Kuntz, Joshua D., & Rose, Klint A. Methods for controlling pore morphology in aerogels using electric fields and products thereof. United States.
Worsley, Marcus A., Baumann, Theodore F., Satcher, Jr., Joe H., Olson, Tammy Y., Kuntz, Joshua D., and Rose, Klint A. Sat . "Methods for controlling pore morphology in aerogels using electric fields and products thereof". United States. doi:. https://www.osti.gov/servlets/purl/1414912.
@article{osti_1414912,
title = {Methods for controlling pore morphology in aerogels using electric fields and products thereof},
author = {Worsley, Marcus A. and Baumann, Theodore F. and Satcher, Jr., Joe H. and Olson, Tammy Y. and Kuntz, Joshua D. and Rose, Klint A.},
abstractNote = {In one embodiment, an aerogel or xerogel includes column structures of a material having minor pores therein and major pores devoid of the material positioned between the column structures, where longitudinal axes of the major pores are substantially parallel to one another. In another embodiment, a method includes heating a sol including aerogel or xerogel precursor materials to cause gelation thereof to form an aerogel or xerogel and exposing the heated sol to an electric field, wherein the electric field causes orientation of a microstructure of the sol during gelation, which is retained by the aerogel or xerogel. In one approach, an aerogel has elongated pores extending between a material arranged in column structures having structural characteristics of being formed from a sol exposed to an electric field that causes orientation of a microstructure of the sol during gelation which is retained by the elongated pores of the aerogel.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sat Dec 16 00:00:00 EST 2017},
month = {Sat Dec 16 00:00:00 EST 2017}
}

Patent:

Save / Share:
  • Incompetent oil well formations can be consolidated by introducing a solution of a devitrifiable glass (e.g., comprising a major amount of lead oxide and a minor amount of zinc oxide and boric oxide) into the formation. After adequate penetration of the formation is achieved, the solvent is driven off and the formation is heated to a temperature high enough to progressively cause the glass to flow over and wet the sand particles. Further heating causes a substantial devitrification of the glass. The resulting devitrified glass is tenaciously adherent to the sand particles and possesses high internal strength and a highmore » resistance to hot gases, hot water, steam and high temperatures. The resulting consolidated formation possesses excellent permeability retention and compressive strength and remains consolidated when subjected to a variety of well production, stimulation and secondary recovery techniques. (18 claims)« less
  • Disclosed herein is an orifice plate comprising one or more plates having orifices disposed therein; the orifices being operative to permit the flow of solids from a moving bed heat exchanger to a solids flow control system; where the orifice plate is downstream of a tube bundle of the moving bed heat exchanger and upstream of the solids flow control system and wherein the orifice plate is operative to evenly distribute the flow of solids in the solids flow control system.
  • Disclosed herein is a solids flow control valve comprising a standpipe; a shoe; and a transport pipe; wherein the standpipe is in operative communication with the shoe and lies upstream of the shoe; the standpipe comprising a first end and a second end, where the first end is in contact with a source that contains disposable solids and the second end is in fluid contact with the shoe; the shoe being operative to restrict the flow of the disposable solids; the transport pipe being disposed downstream of the shoe to receive and transport the solids from the shoe.
  • The present invention includes a method of producing a crystalline metal oxide nanostructure. The method comprises providing a metal salt solution and providing a basic solution; placing a porous membrane between the metal salt solution and the basic solution, wherein metal cations of the metal salt solution and hydroxide ions of the basic solution react, thereby producing a crystalline metal oxide nanostructure.