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Catalyst-containing oxygen transport membrane

Patent ·
OSTI ID:1840220
; ; ; ; ;
A method is described of producing a catalyst-containing composite oxygen ion membrane and a catalyst-containing 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 (Ln1−xAx)wCr1−yByO3−δ and a doped zirconia. Adding certain catalyst metals into the fuel oxidation layer not only enhances the initial oxygen flux, but also reduces the degradation rate of the oxygen flux over long-term operation. One of the possible reasons for the improved flux and stability is that the addition of the catalyst metal reduces the chemical reaction between the (Ln1−xAx)wCr1−yByO3−δ and the zirconia phases during membrane fabrication and operation, as indicated by the X-ray diffraction results.
Research Organization:
Praxair Technology, Inc., Danbury, CT (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
FC26-07NT43088
Assignee:
Praxair Technology, Inc. (Danbury, CT)
Patent Number(s):
11,052,353
Application Number:
16/085,786
OSTI ID:
1840220
Country of Publication:
United States
Language:
English

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