0842900-A1 is referenced by 10 patents and cites 1 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 DEG 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 Ce4+ by coprecipitation, and subjecting the resulting precipitate to a particular calcining steps including reducing calcination.

Title
Composite oxide having oxygen absorption and release capabilities and process for preparing the same
Application Number
EP19970914612 19970404
Publication Number
0842900 (A1)
Application Date
April 4, 1997
Publication Date
May 20, 1998
Inventor
Takemori Hirofumi
JP
Fujiwara Kazuhito
JP
Murota Tadatoshi
JP
Yokoi Hideo
JP
Assignee
Santoku Metal
JP
IPC
C01G 25/00
C01G 27/00
C01G 25/00
C01B 13/02
B01J 23/10
B01J 20/06
B01D 53/86
C01G 27/00
C01G 25/00
C01B 13/02
B01J 23/10
B01J 20/06
B01D 53/86
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