Method for preparing composite oxide having oxygen absorbing and

Details Method for preparing composite oxide having oxygen absorbing and Method for preparing composite oxide having oxygen absorbing and

1995-10-02

1996-12-10

Langel, Wayne

Plastic and nonmetallic article shaping or treating: processes

Including step of generating heat by friction

264 66, 264118, 423263, 423579, 502304, C04B 3700, C01F 1700, C01B 1300

Patent

active

055827853

ABSTRACT:
A method for preparing a composite oxide having oxygen absorbing and desorbing capability involves the steps of: providing a starting composite oxide comprising cerium oxide, zirconium oxide, and hafnium oxide; subjecting the starting composite oxide to heating-deoxidation to give a deoxidized composite oxide; and subjecting the deoxidized composite oxide to heating-oxidation.

REFERENCES:
patent: 5019366 (1991-05-01), Sakai
patent: 5292496 (1994-03-01), Nagashima et al.
patent: 5306673 (1994-04-01), Hermansson et al.

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