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Title: Cu--Pd--M hydrogen separation membranes

Abstract

The disclosure provides an H2 separation membrane comprised of an allow having the composition Cu.Sub.(100-x-y)Pd.sub.xM.sub.y, where x is from about 35 to about 50 atomic percent and where y is from greater than 0 to about 20 atomic percent, and where M consists of magnesium, yttrium, aluminum, titanium, lanthanum, or combinations thereof. The M elements act as strong stabilizers for the B2 phase of the allow, and extend the critical temperature of the alloy for a given hydrogen concentration and pressure. Due to the phase stabilization and the greater temperature range over which a B2 phase can be maintained, the allow is well suited for service as a H2 separation membrane, particularly when applicable conditions are established or cycled above about 600.degree. C. over the course of expected operations. In certain embodiments, the B2 phase comprises at least 60 estimated volume percent of the allow at a steady-state temperature of 400.degree. C. The B2 phase stability is experimentally validated through HT-XRD.

Inventors:
 [1]; ; ;
  1. {hacek over (g)}an, Omer N
Issue Date:
Research Org.:
NETL (National Energy Technology Laboratory, Pittsburgh, PA, and Morgantown, WV (United States))
Sponsoring Org.:
USDOE
OSTI Identifier:
1111136
Patent Number(s):
8,608,829
Application Number:
13/208,403
Assignee:
U.S. Department of Energy (Washington, DC)
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Do, Gao, Michael C, Young, Rongxiang Hu, and Tafen, De Nyago. Cu--Pd--M hydrogen separation membranes. United States: N. p., 2013. Web.
Do, Gao, Michael C, Young, Rongxiang Hu, & Tafen, De Nyago. Cu--Pd--M hydrogen separation membranes. United States.
Do, Gao, Michael C, Young, Rongxiang Hu, and Tafen, De Nyago. Tue . "Cu--Pd--M hydrogen separation membranes". United States. https://www.osti.gov/servlets/purl/1111136.
@article{osti_1111136,
title = {Cu--Pd--M hydrogen separation membranes},
author = {Do and Gao, Michael C and Young, Rongxiang Hu and Tafen, De Nyago},
abstractNote = {The disclosure provides an H2 separation membrane comprised of an allow having the composition Cu.Sub.(100-x-y)Pd.sub.xM.sub.y, where x is from about 35 to about 50 atomic percent and where y is from greater than 0 to about 20 atomic percent, and where M consists of magnesium, yttrium, aluminum, titanium, lanthanum, or combinations thereof. The M elements act as strong stabilizers for the B2 phase of the allow, and extend the critical temperature of the alloy for a given hydrogen concentration and pressure. Due to the phase stabilization and the greater temperature range over which a B2 phase can be maintained, the allow is well suited for service as a H2 separation membrane, particularly when applicable conditions are established or cycled above about 600.degree. C. over the course of expected operations. In certain embodiments, the B2 phase comprises at least 60 estimated volume percent of the allow at a steady-state temperature of 400.degree. C. The B2 phase stability is experimentally validated through HT-XRD.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2013},
month = {12}
}

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