Process for purifying metal nanowires
US-2017120341-A1 · May 4, 2017 · US
Cross-phase separation of nanowires and nanoparticles
US9975178B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9975178-B2 |
| Application number | US-201615212100-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 15, 2016 |
| Priority date | Jul 15, 2016 |
| Publication date | May 22, 2018 |
| Grant date | May 22, 2018 |
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Abstract
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In one embodiment, a process includes creating a mixture of an aqueous component, nanowires and nanoparticles, and a hydrophobic solvent and allowing migration of the nanowires to the hydrophobic solvent, where the nanoparticles remain in the aqueous component. Moreover, the nanowires and nanoparticles are in the aqueous component before the migration.
First claim
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What is claimed is: 1. A process, comprising: creating a mixture of an aqueous component, nanowires and nanoparticles, and a hydrophobic solvent; and allowing migration of the nanowires to the hydrophobic solvent, wherein the nanoparticles remain in the aqueous component, wherein the nanowires and nanoparticles are in the aqueous component before the migration. 2. The process of claim 1 , wherein the hydrophobic solvent is organic. 3. The process of claim 1 , wherein the hydrophobic solvent is selected from a group consisting of chloroform, hexane, toluene, and isoheptane. 4. The process of claim 1 , wherein the nanowires and nanoparticles are metallic. 5. The process of claim 4 , wherein the nanowires and nanoparticles are selected from a group consisting of copper, gold and silver. 6. The process of claim 1 , wherein the nanowires and nanoparticles are of a semiconductor material. 7. The process of claim 1 , wherein the nanowires and nanoparticles are ceramic. 8. The process of claim 1 , wherein a surfactant is present in the aqueous mixture for stabilizing the nanowires and nanoparticles in the aqueous component. 9. The process of claim 8 , wherein the surfactant is hydrophobic. 10. The process of claim 1 , wherein the nanowires have {111} facets on ends thereof. 11. The process of claim 1 , wherein the nanoparticles have {100} facets on ends thereof. 12. The process of claim 1 , wherein the nanowires comprise at least 95% separation yield of a solid material in the hydrophobic solvent after the migration. 13. The process of claim 1 , wherein the nanoparticles comprise at least 95% separation yield of a solid material in the aqueous component after the migration. 14. The process of claim 1 , wherein the nanowires have a length to diameter aspect ratio of at least 10. 15. A process, comprising: creating a phase separated system of an aqueous component, a hydrophobic solvent phase separated from the aqueous component, and nanowires and nanoparticles in the aqueous component; and allowing migration of the nanowires from the aqueous component to the hydrophobic solvent, wherein the nanoparticles remain in the aqueous component. 16. The process of claim 15 , wherein a surfactant is present in the aqueous component for stabilizing the nanowires and nanoparticles in the aqueous component. 17. A process, comprising: creating a phase separated system of an aqueous component having a hydrophobic surfactant therein, a hydrophobic solvent phase separated from the aqueous component, and nanowires and nanoparticles in the aqueous component; and allowing migration of the nanowires from the aqueous component to the hydrophobic solvent, wherein the nanoparticles remain in the aqueous component. 18. The process of claim 8 , wherein the surfactant binds preferentially to {100} facet surfaces and does not bind to {111} facet surfaces.
Assignees
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Classifications
Differential sedimentation · CPC title
Reduction reaction in an Ionic Liquid [IL] · CPC title
Flotation (conditioning for flotation, general arrangement of plan B03B) · CPC title
Manufacture or treatment of nanostructures · CPC title
starting from liquid metal compounds, e.g. solutions · CPC title
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Frequently asked questions
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- What does patent US9975178B2 cover?
- In one embodiment, a process includes creating a mixture of an aqueous component, nanowires and nanoparticles, and a hydrophobic solvent and allowing migration of the nanowires to the hydrophobic solvent, where the nanoparticles remain in the aqueous component. Moreover, the nanowires and nanoparticles are in the aqueous component before the migration.
- Who is the assignee on this patent?
- L Livermore Nat Security Llc
- What technology area does this patent fall under?
- Primary CPC classification B22F1/0025. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue May 22 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).