skip to main content

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

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.
Authors:
 [1]
  1. (Pleasant Hill, CA)
Publication Date:
OSTI Identifier:
870601
Report Number(s):
US 5556892
DOE Contract Number:
W-7405-ENG-48
Resource Type:
Patent
Research Org:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA
Country of Publication:
United States
Language:
English
Subject:
organic; aerogels; sol-gel; polymerization; phenolic-furfural; mixtures; sol-gel; polymerization; phenolic-furfural; 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; phenolic-furfural; aerogel; pyrolyzed; inert; atmosphere; 1050; degree; produce; carbon; aerogels; aerogel; thermal; insulation; chromatographic; packing; water; filtration; ion-exchange; carbon; 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; sol-gel polymerization; porous materials; carbon aerogels; carbon electrodes; solution leads; water filtration; phenolic-furfural aerogel; phenolic-furfural mixtures; phenolic-furfural mixture; phenolic-furfural mixture; chromatographic packing; supercritically dried; organic aerogel; produce carbon; dark brown; double-layer capacitors; cross-linked network /521/