Porous composite oxide and production method thereof

Details Porous composite oxide and production method thereof Porous composite oxide and production method thereof

2004-05-19

2009-10-20

Langel, Wayne (Department: 1793)

Chemistry of inorganic compounds

Rare earth compound

C423S593100, C423S594100, C423S594120, C423S595000, C423S599000

Reexamination Certificate

active

07604789

ABSTRACT:
The present invention provides a porous composite oxide comprising an aggregate of secondary particles in the form of aggregates of primary particles of a composite oxide containing two or more types of metal elements, and having mesopores having a pore diameter of 2-100 nm between the secondary particles; wherein, the percentage of the mesopores between the secondary particles having a diameter of 10 nm or more is 10% or more of the total mesopore volume after firing for 5 hours at 600° C. in an oxygen atmosphere.

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