University of Florida Research Foundation Inc

Mostafa Abboudi

Paul Howard Holloway

A method of forming metal oxide powders includes the steps of solid state mixing of at least one metal nitrate salt, such as Fe(NO)or a combination of metal nitrate salts such as Zn(NO),6HO and Ga(NO), xHO, and at least one reducing organic acid, such as tartaric or citric acid. The mixture is heated to form a metal oxide powder, such as alpha-iron oxide (&#x3b1;-FeO) or a mixed metal powder such as zinc gallate phosphor (ZnGaO). A metal oxide precursor intermediate can be formed and then heated to form the metal oxide powder.

Method of producing nanosized oxide powders

The present invention provides new and useful methods for preparing rare-earth oxysulfide phosphors. Advantageously, in accordance with the methods of the subject invention, rare-earth oxysulfide phosphors can be prepared with lower reaction temperatures and fewer processing steps than methods currently in use. In a preferred embodiment, the process of the subject invention involves blending two different rare-earth nitrate salts and a sulfidizing agent. Then, the mixture is heated at relatively low temperatures until the rare-earth oxysulfide phosphor is produced.

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Tangier, Morocco

Mostafa Abboudi