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Title: Organic aerogels from the sol-gel polymerization of phenolic-furfural mixtures

Abstract

The sol-gel polymerization of a phenolic-furfural mixture in dilute solution leads to a highly cross-linked network that can be supercritically dried to form a high surface area foam. These porous materials have cell/pore sizes .ltoreq.1000.ANG., and although they are dark brown in color, they can be classified as a new type of aerogel. The phenolic-furfural aerogel can be pyrolyzed in an inert atmosphere at 1050.degree. C. to produce carbon aerogels. This new aerogel may be used for thermal insulation, chromatographic packing, water filtration, ion-exchange, and carbon electrodes for energy storage devices, such as batteries and double-layer capacitors.

Inventors:
 [1]
  1. (Pleasant Hill, CA)
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
OSTI Identifier:
870601
Patent Number(s):
5556892
Assignee:
Regents of University of California (Oakland, CA) LLNL
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
organic; aerogels; sol-gel; polymerization; phenolic-furfural; mixtures; mixture; dilute; solution; leads; highly; cross-linked; network; supercritically; dried; form; surface; foam; porous; materials; cell; pore; sizes; ltoreq; 1000; ang; dark; brown; color; classified; type; aerogel; pyrolyzed; inert; atmosphere; 1050; degree; produce; carbon; thermal; insulation; chromatographic; packing; water; filtration; ion-exchange; electrodes; energy; storage; devices; batteries; double-layer; capacitors; organic aerogels; highly cross-linked; carbon electrode; layer capacitors; dilute solution; layer capacitor; thermal insulation; porous material; storage device; energy storage; pore size; inert atmosphere; carbon aerogel; pore sizes; storage devices; sol-gel polymerization; porous materials; carbon aerogels; carbon electrodes; solution leads; water filtration; phenolic-furfural aerogel; phenolic-furfural mixtures; phenolic-furfural mixture; chromatographic packing; supercritically dried; organic aerogel; produce carbon; dark brown; double-layer capacitors; cross-linked network; /521/

Citation Formats

Pekala, Richard W. Organic aerogels from the sol-gel polymerization of phenolic-furfural mixtures. United States: N. p., 1996. Web.
Pekala, Richard W. Organic aerogels from the sol-gel polymerization of phenolic-furfural mixtures. United States.
Pekala, Richard W. Mon . "Organic aerogels from the sol-gel polymerization of phenolic-furfural mixtures". United States. https://www.osti.gov/servlets/purl/870601.
@article{osti_870601,
title = {Organic aerogels from the sol-gel polymerization of phenolic-furfural mixtures},
author = {Pekala, Richard W.},
abstractNote = {The sol-gel polymerization of a phenolic-furfural mixture in dilute solution leads to a highly cross-linked network that can be supercritically dried to form a high surface area foam. These porous materials have cell/pore sizes .ltoreq.1000.ANG., and although they are dark brown in color, they can be classified as a new type of aerogel. The phenolic-furfural aerogel can be pyrolyzed in an inert atmosphere at 1050.degree. C. to produce carbon aerogels. This new aerogel may be used for thermal insulation, chromatographic packing, water filtration, ion-exchange, and carbon electrodes for energy storage devices, such as batteries and double-layer capacitors.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1996},
month = {1}
}

Patent:

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