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Title: High surface area silicon carbide-coated carbon aerogel

Abstract

A metal oxide-carbon composite includes a carbon aerogel with an oxide overcoat. The metal oxide-carbon composite is made by providing a carbon aerogel, immersing the carbon aerogel in a metal oxide sol under a vacuum, raising the carbon aerogel with the metal oxide sol to atmospheric pressure, curing the carbon aerogel with the metal oxide sol at room temperature, and drying the carbon aerogel with the metal oxide sol to produce the metal oxide-carbon composite. The step of providing a carbon aerogel can provide an activated carbon aerogel or provide a carbon aerogel with carbon nanotubes that make the carbon aerogel mechanically robust. Carbon aerogels can be coated with sol-gel silica and the silica can be converted to silicone carbide, improved the thermal stability of the carbon aerogel.

Inventors:
; ; ;
Publication Date:
Research Org.:
LLNL (Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States))
Sponsoring Org.:
USDOE
OSTI Identifier:
1117677
Patent Number(s):
8,629,076
Application Number:
13/051,915
Assignee:
Lawrence Livermore National Security, LLC (Livermore, CA) LLNL
DOE Contract Number:  
AC52-07NA27344
Resource Type:
Patent
Resource Relation:
Patent File Date: 2011 Mar 18
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Worsley, Marcus A, Kuntz, Joshua D, Baumann, Theodore F, and Satcher, Jr, Joe H. High surface area silicon carbide-coated carbon aerogel. United States: N. p., 2014. Web.
Worsley, Marcus A, Kuntz, Joshua D, Baumann, Theodore F, & Satcher, Jr, Joe H. High surface area silicon carbide-coated carbon aerogel. United States.
Worsley, Marcus A, Kuntz, Joshua D, Baumann, Theodore F, and Satcher, Jr, Joe H. Tue . "High surface area silicon carbide-coated carbon aerogel". United States. doi:. https://www.osti.gov/servlets/purl/1117677.
@article{osti_1117677,
title = {High surface area silicon carbide-coated carbon aerogel},
author = {Worsley, Marcus A and Kuntz, Joshua D and Baumann, Theodore F and Satcher, Jr, Joe H},
abstractNote = {A metal oxide-carbon composite includes a carbon aerogel with an oxide overcoat. The metal oxide-carbon composite is made by providing a carbon aerogel, immersing the carbon aerogel in a metal oxide sol under a vacuum, raising the carbon aerogel with the metal oxide sol to atmospheric pressure, curing the carbon aerogel with the metal oxide sol at room temperature, and drying the carbon aerogel with the metal oxide sol to produce the metal oxide-carbon composite. The step of providing a carbon aerogel can provide an activated carbon aerogel or provide a carbon aerogel with carbon nanotubes that make the carbon aerogel mechanically robust. Carbon aerogels can be coated with sol-gel silica and the silica can be converted to silicone carbide, improved the thermal stability of the carbon aerogel.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 14 00:00:00 EST 2014},
month = {Tue Jan 14 00:00:00 EST 2014}
}

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