Method for producing oxide powder

Details Method for producing oxide powder Method for producing oxide powder

1997-01-24

1998-09-22

Marcantoni, Paul

Chemistry of inorganic compounds

Rare earth compound

423592, 423593, 423595, 423598, 423599, 423605, 423607, 423610, C01F 1700

Patent

active

058110682

ABSTRACT:
Disclosed is a method for producing oxide powders and complex oxide powders having an oxygen amount smaller than the stoichiometric amount. The method comprises: spraying a combustible liquid that contains at least one raw material of metals capable of having a plural number of valences and compounds of such metals; and firing the raw material to give a powder of an oxide of at least one of said metals. The oxygen amount in the atmosphere in which the combustible liquid containing said raw material is sprayed and fired is smaller than the total of the oxygen amount necessary for the complete combustion of said combustible liquid and the oxygen amount necessary for the conversion of said raw material into an oxide that is the most stable in air at room temperature.

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P. Fornasiero, et al., "Rh-loaded CeO.sub.2 -ZrO.sub.2 Solid Solutions as Highly Efficient Oxygen Exchangers: Dependence of the Reduction Behavior and the Oxygen Storage Capacity on the Structural Properties" Journal of Catalysis, vol. 151, (1995), pp. 168-177.

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