Chemistry of inorganic compounds – Carbon or compound thereof – Oxygen containing
Reexamination Certificate
2006-07-04
2006-07-04
Langel, Wayne A. (Department: 1754)
Chemistry of inorganic compounds
Carbon or compound thereof
Oxygen containing
C252S373000, C423S652000, C423S654000
Reexamination Certificate
active
07070752
ABSTRACT:
Supported perovskite-type oxides are described. The perovskite-type oxides have the general formula of AxA′x′ByB′y′O3−δ, wherein A is an ion of a metal of Group IIIa or IIIb of the periodic table of elements or mixtures thereof; A′ is an ion of a metal of Groups Ia or IIa of the periodic table or mixtures thereof; B and B′ are ions of a d-block transition metal of the periodic table or mixtures thereof; x, x′, y and y′ vary from 0 to 1; 0.95<x+x′<1.05; 0.95<y+y′<1.05; δ is the deviation from ideal oxygen stoichiometry. This invention also provides for the selection of support materials and the shapes of supported perovskite-type oxides as well as the methods for making them.
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Acharya Divyanshu R.
Bülow Martin
Fitch Frank R.
Tamhankar Satish S.
Wolf Rudolph J.
Langel Wayne A.
Neida Philip H. Von
The BOC Group Inc.
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