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Process for Preparing Palladium Alloy Composite Membranes for Use in Hydrogen Separation, Palladium Alloy Composite Membranes and Products Incorporating or Made from the Membranes

Technology Benefits

Main Advantages of this InventionΓÇóResistant to H2S poisoningΓÇóHigher hydrogen flux due to thinner membrane than other Pd alloy membranesΓÇóCost savings also because of thinner membrane

Technology Application

Potential Areas of Application ΓÇóFuel cell applicationΓÇóHydrogenation and Dehydrogenation reactionsΓÇóHydrocarbon reforming and coal gasification

Detailed Technology Description

None

Supplementary Information

Patent Number: US8101243B2
Application Number: US2007768188A
Inventor: Way, J. Douglas | Lusk, Mark | Thoen, Paul
Priority Date: 3 Apr 2002
Priority Number: US8101243B2
Application Date: 25 Jun 2007
Publication Date: 24 Jan 2012
IPC Current: B05D000500 | B05D000310 | B05D000714
US Class: 427404 | 4273831 | 427437 | 4274431
Assignee Applicant: Colorado School of Mines,Golden
Title: Method of making sulfur-resistant composite metal membranes
Usefulness: Method of making sulfur-resistant composite metal membranes
Summary: For fabricating sulfur-resistant composite metal membrane i.e. sulfur-resistant composite palladium-gold alloy membrane (claimed) useful in purification of hydrogen that produces energy in fuel cell power systems.
Novelty: Fabricating sulfur-resistant composite metal membrane used to purify hydrogen involves seeding substrate with palladium crystallite; decomposing organic ligand; reducing crystallite to metallic form; and annealing palladium and gold films

Industry

Chemical/Material

Sub Category

Fuel Cell

*Abstract

This invention and the subsequent patent applications describe a method for producing Palladium alloy composite membranes that are useful in applications that involve the need to separate hydrogen from a gas mixture. In the main invention, a Pd alloy composite membrane is realized in which the Pd alloy film is 1 ╬╝m or less in thickness and resistant to poisoning by sulfide compounds. Further, the Pd alloy composite membranes are applied to a number of applications, such a fuel reforming.

*Principal Investigator

Name: Douglas Way

Department:

Name: Fernando Roa

Department:

Name: Stephen Paglieri

Department:

Country/Region

USA