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:
Feb. 18, 2014
Filed:
May. 03, 2011
Applicants:
Yi Hua MA, Worcester, MA (US);
Natalie Pomerantz, Worcester, MA (US);
Inventors:
Yi Hua Ma, Worcester, MA (US);
Natalie Pomerantz, Worcester, MA (US);
Assignee:
Worcester Polytechnic Institute, Worcester, MA (US);
Primary Examiner:
Int. Cl.
CPC ...
B01D 53/22 (2006.01); B01D 71/02 (2006.01); C25D 5/50 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of making a membrane permeable to hydrogen gas (H↑) is disclosed. The membrane is made by forming a palladium layer, depositing a layer of copper on the palladium layer, and galvanically displacing a portion of the copper with palladium. The membrane has improved resistance to poisoning by HS compared to a palladium membrane. The membrane also has increased permeance of hydrogen gas compared to palladium-copper alloys. The membrane can be annealed at a lower temperature for a shorter amount of time.