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Title: Strontium cobaltite oxygen sponge catalyst and methods of use

Rapid, reversible redox activity may be accomplished at significantly reduced temperatures, as low as about C., from epitaxially stabilized, oxygen vacancy ordered SrCoO.sub.2.5 and thermodynamically unfavorable perovskite The fast, low temperature redox activity in may be attributed to a small Gibbs free energy difference between the two topotactic phases. Epitaxially stabilized thin films of strontium cobaltite provide a catalyst adapted to rapidly transition between oxidation states at substantially low temperatures. Methods of transitioning a strontium cobaltite catalyst from a first oxidation state to a second oxidation state are described.
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Patent File Date: 2013 Nov 26
Research Org:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
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Country of Publication:
United States

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