Stabilized perovskite for ceramic membranes
AssigneePraxair Technology, Inc.
InventorsChieh-Cheng Chen, Ravi Prasad
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Abstract
A stable substantially cubic perovskite crystalline structure of at least one strontium-doped lanthanum cobalt oxide (LSC) having a stabilizing amount of at least one cerium gadolinium oxide (CGO) therein.
Claims21
A process for making a stable substantially cubic crystalline structure of at least one strontium-doped lanthanum cobalt oxide (LSC) perovskite that comprises:
- (a) incorporating a stabilizing amount of at least one cerium gadolinium oxide (CGO) to the LSC perovskite;
- and
- (b) sintering the mixture to produce a stable substantially cubic crystalline structure of LSC perovskite.
A composition of matter comprising a stable substantially cubic perovskite crystalline structure of at least one strontium-doped lanthanum cobalt oxide (LSC) having a stabilizing amount of at least one cerium gadolinium oxide (CGO) therein.
A composite composition comprising a substrate, a first layer of at least one cerium gadolinium oxide (CGO) and a second layer which comprises a stable substantially cubic perovskite crystalline structure of at least one strontium-doped lanthanum cobalt oxide (LSC) having a stabilized amount of at least one CGO therein.
Dependencies are inferred from the claim text.