05945370 is referenced by 12 patents and cites 10 patents.

A composite oxide having oxygen absorbing and desorbing capability containing 90 to 100 weight % total of cerium, zirconium, and hafnium based on a total amount of metals contained in the composite oxide, the total amount of cerium, zirconium, and hafnium consisting of 14.0 to 70.5 at % cerium, 29.49 to 72.5 at % zirconium, and 0.01 to 13.5 at % hafnium, wherein degree of solid solution of the composite oxide is not lower than 70%, and wherein the composite oxide has reducing property that not less than 90% of tetravalent cerium contained in the composite oxide is reduced into trivalent cerium when the composite oxide is held at 600.degree. C. under a reducing atmosphere; and a method for preparing the composite oxide including the steps of preparing a composite salt from a starting material solution wherein 85 weight % or more of the cerium ions are Ce.sub.4+ by coprecipitation, and subjecting the resulting precipitate to a particular calcining steps including reducing calcination.

Title
Composite oxide having oxygen absorbing and desorbing capability and method for preparing the same
Application Number
8/973515
Publication Number
5945370
Application Date
December 5, 1997
Publication Date
August 31, 1999
Inventor
Hirofumi Takemori
Kobe
JP
Kazuhito Fujiwara
Kakogawa
JP
Tadatoshi Murota
Miki
JP
Hideo Yokoi
Sanda
JP
Agent
Darby & Darby
Assignee
Santoku Metal
JP
IPC
C04B 35/50
C01F 17/00
B01J 23/10
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