Chemistry: electrical and wave energy – Processes and products
Patent
1993-11-01
1995-12-26
Gorgos, Kathryn
Chemistry: electrical and wave energy
Processes and products
204295, 252518, 252519, 252520, 252521, 429 33, C25B 102, C25B 1304
Patent
active
054784441
ABSTRACT:
A composite ceramic mixed oxygen ion and electronic conducting materials having high ambipolar activity which can be fabricated into thin membranes for high efficiency oxygen separation from air at intermediate temperatures. The mixed conducting materials have composite non-homogeneous microstructures of a separate predominantly oxygen ion conductive phase and a predominantly electronic conductive phase. Predominantly oxygen ion conducting phases include bismuth, cerium and thorium oxide based materials and predominantly electronic conducting phases include at least one metal, metal oxide of at least one metal, and at least one perovskite-type electronic conductor material.
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Joshi Ashok V.
Krist Kevin
Liu Meilin
Shen Yousheng
Virkar Anil V.
Gas Research Institute
Gorgos Kathryn
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