Cerium oxide-zirconium oxide-based mixed oxide and method...

Details Cerium oxide-zirconium oxide-based mixed oxide and method... Cerium oxide-zirconium oxide-based mixed oxide and method...

2010-09-21

2011-11-01

Silverman, Stanley (Department: 1736)

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Rare earth metal

C423S069000, C423S071000, C423S084000, C423S594120, C423S608000, C502S302000, C502S303000, C502S304000, C502S349000

Reexamination Certificate

active

08048389

ABSTRACT:
The present invention provides a cerium oxide-zirconium oxide-based mixed oxide having superior platinum dispersibility and a suitable OSC, and a simple production process thereof. The cerium oxide-zirconium oxide-based mixed oxide comprises cerium oxide and zirconium oxide, wherein (1) the weight ratio of CeO2:ZrO2is 60:40 to 90:10, and (2) the cerium oxide and the zirconium oxide are present as a mixture, the zirconium oxide being composed of a solid solution in which tetragonal or cubic zirconium oxide contains cerium.

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