Mixed-metal oxide particles by liquid feed flame spray pyrolysis of oxide precursors in oxygenated solvents
US7220398B2 · kind B2 · utility
113Cited by
22References
17Claims
0Family size
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Key dates
| Filing date | Feb 19, 2003 |
| Grant date | May 22, 2007 |
| Priority date | — |
| Expiry date | Aug 25, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2993
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Liquid feed flame spray pyrolysis of solutions of a metal oxide precursor which is an alkoxide or C1-6 carboxylate and at least one second metal oxide precursor and/or second metal compound dissolved in oxygenated solvent by combustion with oxygen lead to the formation of sub-micron mixed-metal oxide powders not accessible by other processes or by the pyrolysis of metal chlorides or nitrates. The powders have numerous uses in advanced materials applications including particulate solid state lasers, advanced ceramic materials, and as catalysts in organic synthesis and automobile exhaust systems.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.