Compound oxide having oxygen absorbing and desorbing capability

Details Compound oxide having oxygen absorbing and desorbing capability Compound oxide having oxygen absorbing and desorbing capability

1994-06-20

1995-12-26

Langel, Wayne

Chemistry of inorganic compounds

Rare earth compound

423579, 502304, C01F 1700, C01B 1300

Patent

active

054785430

ABSTRACT:
A compound oxide having oxygen absorbing and desorbing capability contains 4.99-98.99% by weight of cerium oxide, 1-95% by weight of zirconium oxide and 0.01-20% by weight of hafnium oxide. The compound oxide has an oxygen absorbing and desorbing capability of at least 100 .mu.mol/g at 400-700.degree. C. and a specific surface area of at least 10 m.sup.2 /g after heating at 900.degree. C. for 5 hours.

REFERENCES:
patent: 5019366 (1991-05-01), Sakai
patent: 5292496 (1994-03-01), Nagashima et al.

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