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Title: Durable pd-based alloy and hydrogen generation membrane thereof

Abstract

A durable Pd-based alloy is used for a H.sub.2-selective membrane in a hydrogen generator, as in the fuel processor of a fuel cell plant. The Pd-based alloy includes Cu as a binary element, and further includes "X", where "X" comprises at least one metal from group "M" that is BCC and acts to stabilize the .beta. BCC phase for stability during operating temperatures. The metal from group "M" is selected from the group consisting of Fe, Cr, Nb, Ta, V, Mo, and W, with Nb and Ta being most preferred. "X" may further comprise at least one metal from a group "N" that is non-BCC, preferably FCC, that enhances other properties of the membrane, such as ductility. The metal from group "N" is selected from the group consisting of Ag, Au, Re, Ru, Rh, Y, Ce, Ni, Ir, Pt, Co, La and In. The at. % of Pd in the binary Pd--Cu alloy ranges from about 35 at. % to about 55 at. %, and the at. % of "X" in the higher order alloy, based on said binary alloy, is in the range of about 1 at. % to about 15 at. %. The metals are selected according tomore » a novel process.« less

Inventors:
 [1];  [2];  [2]
  1. Madison, CT
  2. Glastonbury, CT
Issue Date:
Research Org.:
UTC Power Corporation (South Windsor, CT)
Sponsoring Org.:
USDOE
OSTI Identifier:
1014383
Patent Number(s):
7655183
Application Number:
US Patent Application 11/712,200
Assignee:
UTC Power Corporation (South Windsor, CT)
Patent Classifications (CPCs):
C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01B - NON-METALLIC ELEMENTS
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
DOE Contract Number:  
FC26-05NT42453
Resource Type:
Patent
Country of Publication:
United States
Language:
English

Citation Formats

Benn, Raymond C, Opalka, Susanne M, and Vanderspurt, Thomas Henry. Durable pd-based alloy and hydrogen generation membrane thereof. United States: N. p., 2010. Web.
Benn, Raymond C, Opalka, Susanne M, & Vanderspurt, Thomas Henry. Durable pd-based alloy and hydrogen generation membrane thereof. United States.
Benn, Raymond C, Opalka, Susanne M, and Vanderspurt, Thomas Henry. Tue . "Durable pd-based alloy and hydrogen generation membrane thereof". United States. https://www.osti.gov/servlets/purl/1014383.
@article{osti_1014383,
title = {Durable pd-based alloy and hydrogen generation membrane thereof},
author = {Benn, Raymond C and Opalka, Susanne M and Vanderspurt, Thomas Henry},
abstractNote = {A durable Pd-based alloy is used for a H.sub.2-selective membrane in a hydrogen generator, as in the fuel processor of a fuel cell plant. The Pd-based alloy includes Cu as a binary element, and further includes "X", where "X" comprises at least one metal from group "M" that is BCC and acts to stabilize the .beta. BCC phase for stability during operating temperatures. The metal from group "M" is selected from the group consisting of Fe, Cr, Nb, Ta, V, Mo, and W, with Nb and Ta being most preferred. "X" may further comprise at least one metal from a group "N" that is non-BCC, preferably FCC, that enhances other properties of the membrane, such as ductility. The metal from group "N" is selected from the group consisting of Ag, Au, Re, Ru, Rh, Y, Ce, Ni, Ir, Pt, Co, La and In. The at. % of Pd in the binary Pd--Cu alloy ranges from about 35 at. % to about 55 at. %, and the at. % of "X" in the higher order alloy, based on said binary alloy, is in the range of about 1 at. % to about 15 at. %. The metals are selected according to a novel process.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2010},
month = {2}
}

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Works referenced in this record:

Ab initio studies of stepped Pd surfaces with and without S
journal, April 2003