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Title: Composite oxygen transport membrane

Abstract

A method is described of producing a composite oxygen ion membrane and a composite oxygen ion membrane in which a porous fuel oxidation layer and a dense separation layer and optionally, a porous surface exchange layer are formed on a porous support from mixtures of (Ln.sub.1-xA.sub.x).sub.wCr.sub.1-yB.sub.yO.sub.3-.delta. and a doped zirconia. Preferred materials are (La.sub.0.8Sr.sub.0.2).sub.0.95Cr.sub.0.7Fe.sub.0.3O.sub.3-.delta. for the porous fuel oxidation layer, (La.sub.0.8Sr.sub.0.2).sub.0.95Cr.sub.0.5Fe.sub.0.5O.sub.3-.delta. for the dense separation layer, and (La.sub.0.8Sr.sub.0.2).sub.0.95Cr.sub.0.3Fe.sub.0.7O.sub.3-.delta. for the porous surface exchange layer. Firing the said fuel activation and separation layers in nitrogen atmosphere unexpectedly allows the separation layer to sinter into a fully densified mass.

Inventors:
; ;
Publication Date:
Research Org.:
PRAXAIR TECHNOLOGY, INC. Danbury, CT (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1331385
Patent Number(s):
9,486,735
Application Number:
14/856,038
Assignee:
PRAXAIR TECHNOLOGY, INC. (Danbury, CT) NETL
DOE Contract Number:  
FC26-07NT43088
Resource Type:
Patent
Resource Relation:
Patent File Date: 2015 Sep 16
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 36 MATERIALS SCIENCE

Citation Formats

Lu, Zigui, Plonczak, Pawel J., and Lane, Jonathan A. Composite oxygen transport membrane. United States: N. p., 2016. Web.
Lu, Zigui, Plonczak, Pawel J., & Lane, Jonathan A. Composite oxygen transport membrane. United States.
Lu, Zigui, Plonczak, Pawel J., and Lane, Jonathan A. Tue . "Composite oxygen transport membrane". United States. https://www.osti.gov/servlets/purl/1331385.
@article{osti_1331385,
title = {Composite oxygen transport membrane},
author = {Lu, Zigui and Plonczak, Pawel J. and Lane, Jonathan A.},
abstractNote = {A method is described of producing a composite oxygen ion membrane and a composite oxygen ion membrane in which a porous fuel oxidation layer and a dense separation layer and optionally, a porous surface exchange layer are formed on a porous support from mixtures of (Ln.sub.1-xA.sub.x).sub.wCr.sub.1-yB.sub.yO.sub.3-.delta. and a doped zirconia. Preferred materials are (La.sub.0.8Sr.sub.0.2).sub.0.95Cr.sub.0.7Fe.sub.0.3O.sub.3-.delta. for the porous fuel oxidation layer, (La.sub.0.8Sr.sub.0.2).sub.0.95Cr.sub.0.5Fe.sub.0.5O.sub.3-.delta. for the dense separation layer, and (La.sub.0.8Sr.sub.0.2).sub.0.95Cr.sub.0.3Fe.sub.0.7O.sub.3-.delta. for the porous surface exchange layer. Firing the said fuel activation and separation layers in nitrogen atmosphere unexpectedly allows the separation layer to sinter into a fully densified mass.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2016},
month = {11}
}

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Works referenced in this record:

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