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Fluoroalkylsilanated mesoporous metal oxide particles and methods of preparation thereof

  • US 8,741,432 B1
  • Filed: 08/10/2011
  • Issued: 06/03/2014
  • Est. Priority Date: 08/16/2010
  • Status: Active Grant
First Claim
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1. A treated aggregate, comprising:

  • a) an inorganic oxide substrate having the formula SiOx, wherein the inorganic oxide substrate possesses a specific surface area of at least 50 square meters per gram;

    b) a molecular layer coating of —

    CF3 terminated molecular fragments, wherein the —

    CF3 terminated molecular fragments are covalently bonded to the inorganic oxide substrate such that at least 15 parts by weight of fluorine in the form of —

    CF—

    , —

    CF2

    , or —

    CF3 fragments is covalently bound to 100 parts by weight of the inorganic oxide substrate,wherein the treated aggregate comprises a geometric shape that is determined by the inorganic oxide substrate and the molecular layer coating, the geometric shape being characterized by an occurrence of concave features of multiple sizes spanning a range from about 5 nm to about 0.001 mm.

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