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Mixed anion materials and compounds for novel proton conducting membranes

United States Patent

September 5, 2006
View the Complete Patent at the US Patent & Trademark Office
The present invention provides new amorphous or partially crystalline mixed anion chalcogenide compounds for use in proton exchange membranes which are able to operate over a wide variety of temperature ranges, including in the intermediate temperature range of about 100 .degree. C. to C., and new uses for crystalline mixed anion chalcogenide compounds in such proton exchange membranes. In one embodiment, the proton conductivity of the compounds is between about 10.sup.-8 S/cm and 10.sup.-1 S/cm within a temperature range of between about -60 and C. and a relative humidity of less than about 12%.
Poling; Steven Andrew (Moorefield, WV), Nelson; Carly R. (Ames, IA), Martin; Steve W. (Ames, IA)
Iowa State University Research Foundation, Inc. (Ames, IA)
10/ 848,967
May 19, 2004
STATEMENT OF GOVERNMENT RIGHTS This invention was made with support of the United States Government under Department of Energy's Hydrogen Program under Cooperative Agreement No. DE-FC36-00GO10-531. The Government has certain rights in this invention.