Hollow metal nanoparticle, catalyst including same, and method for manufacturing hollow metal nanoparticle
US-2017128915-A1 · May 11, 2017 · US
Hollow metal nanoparticles
US9776173B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9776173-B2 |
| Application number | US-201414893811-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 3, 2014 |
| Priority date | Jun 7, 2013 |
| Publication date | Oct 3, 2017 |
| Grant date | Oct 3, 2017 |
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- Title
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- Abstract
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Abstract
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The present specification relates to a hollow metal nanoparticle. Specifically, the present specification relates to a hollow metal nanoparticle having a cavity.
First claim
Opening claim text (preview).
The invention claimed is: 1. A hollow metal nanoparticle comprising: a hollow core portion; a shell portion comprising a first metal and a second metal; and a cavity extending from an outer surface of the shell portion to the hollow core portion in one or two or more regions of the shell portion, wherein the hollow metal nanoparticle has a particle diameter of 1 nm to 30 nm, wherein the hollow metal nanoparticle has a spherical shape and a diameter of the cavity is 5% to 30% of the particle diameter of the hollow metal nanoparticle, and wherein the particle diameter of the hollow metal nanoparticle is in a range of 80% to 120% of the average particle diameter of a plurality of hollow metal nanoparticles. 2. The hollow metal nanoparticle of claim 1 , wherein the hollow metal nanoparticle has a particle diameter of 1 nm to 20 nm. 3. The hollow metal nanoparticle of claim 1 , wherein the hollow metal nanoparticle has a particle diameter of 1 nm to 12 nm. 4. The hollow metal nanoparticle of claim 1 , wherein the hollow metal nanoparticle has a particle diameter of 1 nm to 6 nm. 5. The hollow metal nanoparticle of claim 1 , wherein the shell portion has a thickness of more than 0 nm and 5 nm or less. 6. The hollow metal nanoparticle of claim 1 , wherein the hollow core portion is 50% by volume or more of the hollow metal nanoparticle. 7. The hollow metal nanoparticle of claim 1 , wherein the hollow core portion comprises a surfactant. 8. The hollow metal nanoparticle of claim 1 , wherein an atomic percentage ratio of the first metal to the second metal in the shell portion is 1:5 to 10:1. 9. The hollow metal nanoparticle of claim 1 , wherein the shell portion comprises: a first shell comprising the first metal; and a second shell comprising the second metal. 10. The hollow metal nanoparticle of claim 1 , wherein the shell portion comprises: a first shell having a higher content of the first metal than that of the second metal; and a second shell having a higher content of the second metal than that of the first metal. 11. The hollow metal nanoparticle of claim 1 , wherein the first metal and the second metal are each independently selected from the group consisting of metals, metalloids, lanthanide metals, and actinide metals, which belong to Groups 3 to 15 of the periodic table. 12. The hollow metal nanoparticle of claim 1 , wherein the first metal and the second metal are each independently selected from the group consisting of platinum (Pt); ruthenium (Ru); rhodium (Rh); molybdenum (Mo); osmium (Os); iridium (Ir); rhenium (Re); palladium (Pd); vanadium (V); tungsten (W); cobalt (Co); iron (Fe); selenium (Se); nickel (Ni); bismuth (Bi); tin (Sn); chromium (Cr); titanium (Ti); gold (Au); cerium (Ce); silver (Ag); and copper (Cu). 13. The hollow metal nanoparticle of claim 1 , wherein the first metal and the second metal are different from each other, and the first metal or the second metal is nickel. 14. The hollow metal nanoparticle of claim 1 , wherein the first metal and the second metal are different from each other, and the first metal or the second metal is platinum. 15. The hollow metal nanoparticle of claim 1 , wherein the first metal is nickel, and the second metal is platinum.
Assignees
Inventors
Classifications
Hollow particles · CPC title
Nanosized particles · CPC title
Complex form nanoparticles, e.g. prism, pyramid, octahedron · CPC title
Hollow particles, including tubes and shells · CPC title
- B22F1/00Primary
Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties · CPC title
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Frequently asked questions
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- What does patent US9776173B2 cover?
- The present specification relates to a hollow metal nanoparticle. Specifically, the present specification relates to a hollow metal nanoparticle having a cavity.
- Who is the assignee on this patent?
- Lg Chemical Ltd
- What technology area does this patent fall under?
- Primary CPC classification B22F1/00. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Oct 03 2017 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).