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Aerogels

           
Aerogels and Nanofoams are derived from the sol-gel polymerization of selected silica or resorcinol-formaldehyde (RF) monomers in solution. The sol-gel solution is cast into the desired shape and after the formation of a highly cross-linked gel, the solvent is removed from the pores of the gel. The remaining rigid monolithic shape consists of covalently bonded, nanometer-sized particles that are arranged in a 3-dimensional network. Precursor RF gels can be applied to a fine carbon felt which is carbonized to form carbon nanofoam electrodes. Nanofoams and Aerogels
           
A common feature of all aerogels and nanofoams are their open, ultra small inter connected pores with a size of <100nm (0.100 nm). This open cell structure provides access to the entire surface area for reaction/deposition of materials as either gas or ions in solution. The physical properties of aerogels are controlled by the density and microstructure of the gel.  
 
 
 
 
 
           
General Features of Nanofoams and Aerogels:
           
  Silica Aerogel Lowest density solid made, superior insulator
  Resorcinol-formaldehyde (RF) Nanofoam Precursor for carbon nanofoam
  Carbon Nanofoam Electrically conductive, high electrical capacitance, excellent thermal insulator, electrode applications.
 
           

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