The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 02, 2015
Filed:
Aug. 22, 2008
Applicants:
J. Douglas Way, Boulder, CO (US);
Paul Thoen, Littleton, CO (US);
Sabina K. Gade, Westminster, CO (US);
Inventors:
J. Douglas Way, Boulder, CO (US);
Paul Thoen, Littleton, CO (US);
Sabina K. Gade, Westminster, CO (US);
Assignee:
Colorado School of Mines, Golden, CO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 71/02 (2006.01); B01D 67/00 (2006.01); C01B 3/50 (2006.01); C23C 18/18 (2006.01); C23C 18/38 (2006.01); C23C 18/44 (2006.01); C23C 18/16 (2006.01);
U.S. Cl.
CPC ...
B01D 71/022 (2013.01); B01D 67/0069 (2013.01); C01B 3/505 (2013.01); C23C 18/1605 (2013.01); C23C 18/1651 (2013.01); C23C 18/1657 (2013.01); C23C 18/1692 (2013.01); C23C 18/1841 (2013.01); C23C 18/38 (2013.01); C23C 18/44 (2013.01); B01D 2325/20 (2013.01);
Abstract
The invention provides support-free palladium membranes and methods of making these membranes. Single-gas testing of the unsupported foils produced hydrogen permeabilities equivalent to thicker membranes produced by cold-rolling. Defect-free films as thin as 7.2 microns can be fabricated, with ideal H/Nselectivities as high as 40,000. Homogeneous membrane compositions may also be produced using these methods.