Method of making cerium oxide nanoparticles
US9303223B2 · kind B2 · utility
1Cited by
80References
17Claims
0Family size
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Key dates
| Filing date | Nov 11, 2014 |
| Grant date | Apr 5, 2016 |
| Priority date | — |
| Expiry date | Nov 11, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2982
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process for making cerium-containing oxide nanoparticles includes providing an aqueous reaction mixture containing a source of cerous ion, a source of hydroxide ion, at least one monoether carboxylic acid wherein the molar ratio of said monoether carboxylic acid to cerous ions is greater than 0.2, and an oxidant. The cerous ion is oxidized to ceric ion, thereby forming a product dispersion of cerium-containing oxide nanoparticles CeO2-δ, wherein δ has a value of about 0.0 to about 0.5.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.