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Title: Composite oxygen ion transport element

Patent ·
OSTI ID:909585

A composite oxygen ion transport element that has a layered structure formed by a dense layer to transport oxygen ions and electrons and a porous support layer to provide mechanical support. The dense layer can be formed of a mixture of a mixed conductor, an ionic conductor, and a metal. The porous support layer can be fabricated from an oxide dispersion strengthened metal, a metal-reinforced intermetallic alloy, a boron-doped Mo.sub.5Si.sub.3-based intermetallic alloy or combinations thereof. The support layer can be provided with a network of non-interconnected pores and each of said pores communicates between opposite surfaces of said support layer. Such a support layer can be advantageously employed to reduce diffusion resistance in any type of element, including those using a different material makeup than that outlined above.

Research Organization:
Praxair Technology, Inc. (Danbury, CT)
Sponsoring Organization:
USDOE
DOE Contract Number:
FC26-01NT41096
Assignee:
Praxair Technology, Inc. (Danbury, CT); BP Corporation North America, Inc. (Warrenville, IL)
Patent Number(s):
7,229,537
Application Number:
10/864,577
OSTI ID:
909585
Country of Publication:
United States
Language:
English