06255242 is referenced by 21 patents and cites 12 patents.

A zirconium- and cerium-based mixed oxide having good thermal stability and oxidation-reduction performance, in particular, is provided. The mixed oxide which comprises zirconium and cerium is characterized in (1) that cubic phase purity of a zirconia- and ceria-based solid solution is not less than 95% by volume of the crystal phase thereof and (2) that the cubic phase purity is not less than 75% by volume even after two repetitions of the step of subjecting the mixed oxide to heat treatment at 1,000° C. and then cooling the same to room temperature. A method of producing the mixed oxide is also provided which comprises admixing basic zirconium sulfate with a cerium ion-containing solution and then adding a base to the resulting mixed solution to thereby causing formation of a precipitate.

Title
Zirconium- and cerium-based mixed oxide and method of production thereof
Application Number
9/519256
Publication Number
6255242 (B1)
Application Date
March 6, 2000
Publication Date
July 3, 2001
Inventor
Kimio Ouchi
Osaka
US
Toshio Nakatani
Osaka
US
Yoshichika Umemoto
Osaka
US
Agent
Baker Botts L
US
Assignee
Daiichi Kigenso Kagaku Kogyo
US
IPC
C04B 35/48
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