Barium- and ruthenium-containing perovskite catalysts

Details Barium- and ruthenium-containing perovskite catalysts Barium- and ruthenium-containing perovskite catalysts

1978-08-25

1980-04-29

Shine, W. J.

Compositions

X-ray or neutron shield

4232135, B01J 2106, B01J 2358, B01J 2364

Patent

active

042005540

ABSTRACT:
Catalytic compositions having the general formula, ABO.sub.3, and a perovskite crystal structure, wherein the A sites are substantially fully occupied by barium ions. About 1% to 20% of the Type B cation sites are occupied by ions of at least one platinum group metal selected from ruthenium, osmium, rhodium, iridium, palladium and platinum, with ruthenium being present and occupying up to about 10% of the Type B cation sites. The balance of 80% to 99% of the Type B cation sites are occupied by ions of at least one metal having an atomic radius between 0.4 to 1.4 Angstroms. The compositions are useful in gaseous oxidation and reduction reactions.

REFERENCES:
patent: 3900428 (1975-08-01), Mai et al.
patent: 3905918 (1975-09-01), Mai et al.
patent: 3907968 (1975-09-01), Kobylinski et al.

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