Compositions Comprising Nanoparticles and Processes for Making Nanoparticles
OwnerJoshua J. Willis, Jeffrey C, Bunquin +5inventors
InventorsJoshua J. Willis, Jeffrey C, Bunquin, Stephanie M Westbrook, Antonie Jan Bons, Joseph A. Thnockmorton, Javier Guzman, Renyuan Yu
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Abstract
The present disclosure relates to nanoparticle compositions, catalyst compositions, processes for making nanoparticle compositions and processes for making catalyst compositions. In at least one embodiment, a composition includes a plurality of nanoparticles, where each nanoparticle includes a kernel, the kernels include at least one metal element and oxygen, and the kernels have an average particle size from 4 to 100 nanometers, and a particle size distribution of less than 20%.
Claims25
A composition comprising a plurality of nanoparticles, wherein each nanoparticle comprises a kernel, the kernels comprise at least one metal element and oxygen, and the kernels have an average particle size from 4 to 100 nm, and a particle size distribution of no greater than 20%.
A process for making a composition comprising a plurality of nanoparticles, wherein the nanoparticles comprise an oxide of at least one metal element, and the process comprise:
- (I) providing a first dispersion system at a first temperature, the first dispersion system comprising a salt of a long-chain organic acid of the at least one metal element, a long-chain hydrocarbon solvent, optionally a salt of a second organic acid of the at least one metal element, optionally sulfur or an organic sulfur compound soluble in the long-chain hydrocarbon solvent, and optionally an organic phosphorus compound soluble in the long-chain hydrocarbon solvent;
- and
- (II) heating the first dispersion system to a second temperature higher than the first temperature but no higher than the boiling point of the long-chain hydrocarbon solvent, where at least a portion of the salt of the long-chain organic acid and at least a portion of the salt of the second organic acid, if present, decomposes to form a second dispersion system comprising nanoparticles dispersed in the long-chain hydrocarbon solvent, and the nanoparticles comprise kernels, and the kernels comprise the at least one metal element, oxygen, optionally sulfur, and optionally phosphorus.
Dependencies are inferred from the claim text.