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Hollow porous-wall glass microspheres and composition and process for controlling pore size and pore volume

United States Patent Application

View the Complete Application at the US Patent & Trademark Office
Savannah River National Laboratory - Visit the Technology Transfer Website
A porous wall hollow glass microsphere is provided having a diameter range of between 1 to 200 microns, a density of between 1.0 to 2.0 gm/cc, a porous-wall structure having wall openings defining an average pore size of between 10 to 1000 angstroms, and which contains therein a hydrogen storage material. The porous-wall structure may be modified by precise control of heat treatment temperatures of precursor hollow glass microspheres such that the pore diameter and percentage of pore formation may be regulated. The ability to control characteristics of porosity allow customization of specific applications for the PWHGM in a variety of biomedical, sensor, hydrogen storage, and other microencapsulation technologies.
Schumacher, Ray F. (Aiken, SC), Peeler, David K. (Evans, GA), Hansen, Erich K. (Aiken, SC), Wicks, George G. (Aiken, SC), Heung, Leung K. (Aiken, SC)
Savannah River Nulcear Solutions, LLC (Aiken SC)
12/ 315,544
December 4, 2008
STATEMENT AS TO RIGHTS TO INVENTIONS MADE UNDER FEDERALLY SPONSORED RESEARCH AND DEVELOPMENT [0001] This invention was made with Government support under Contract No. [0002] DE-AC0996-SR18500 awarded by the United States Department of Energy. The Government has certain rights in the invention.