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US-9840443-B2 · Dec 12, 2017 · US
Mechanochemical synthesis of iridium diboride and iridium monoboride
US10427946B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10427946-B2 |
| Application number | US-201515522702-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 27, 2015 |
| Priority date | Oct 27, 2014 |
| Publication date | Oct 1, 2019 |
| Grant date | Oct 1, 2019 |
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Abstract
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The present disclosure relates generally to a composition comprising at least one of iridium diboride and iridium monoboride, and methods of making such. The present disclosure also relates to a composition comprising iridium monoboride and at least one of (a) rows of single iridium atoms and/or (b) one or more clusters of iridium atoms, and methods of making such.
First claim
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What is claimed is: 1. A composition comprising iridium diboride and iridium monoboride. 2. The composition of claim 1 , wherein the iridium diboride has a hexagonal ReB 2 structure. 3. The composition of claim 1 , wherein the iridium monoboride has an orthorhombic lattice. 4. The composition of claim 1 , wherein the composition further comprises a phase of iridium boride comprising IrB 1.35 . 5. The composition of claim 4 , wherein (i) the ReB 2 iridium diboride is present in the composition at a range of from about 5 to about 10 wt %, (ii) the iridium monoboride is present in the composition at a range of from about 5 to about 20 wt %, and (iii) the IrB 1.35 phase of iridium boride is present in the composition at a range of from about 70 to 90 wt %. 6. A method of producing the composition of claim 1 comprising: mechanochemically reacting iridium and boron, and annealing the mechanochemically reacted iridium and boron. 7. The method of claim 6 , wherein the iridium and boron are added at a molar ratio in a range of from about 1:2 to about 1:5 iridium to boron. 8. The method of claim 6 , wherein the iridium and boron are mechanochemically reacted for at least 30 hours and annealed for a time in a range of from about 12 hours to about 60 hours to produce a composition comprising iridium diboride and iridium monoboride. 9. The method of claim 8 , wherein the iridium and boron are mechanochemically reacted for about 30 hours. 10. The method of claim 8 , wherein the mechanochemically reacted iridium and boron are annealed for about 48 hours at about 1050° C. 11. The method of claim 6 , wherein the iridium and boron are mechanochemically reacted for at least 30 hours and annealed for a time greater than 60 hours to produce a composition comprising iridium monoboride and at least one of (a) one or more rows of single iridium atoms and (b) one or more clusters of iridium atoms. 12. The method of claim 8 , wherein the iridium and boron are annealed at a temperature in a range of from about 950° C. to about 1150.
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Classifications
based on borides · CPC title
- C01B35/04Primary
Metal borides · CPC title
by mechanical alloying (blending, milling) · CPC title
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- What does patent US10427946B2 cover?
- The present disclosure relates generally to a composition comprising at least one of iridium diboride and iridium monoboride, and methods of making such. The present disclosure also relates to a composition comprising iridium monoboride and at least one of (a) rows of single iridium atoms and/or (b) one or more clusters of iridium atoms, and methods of making such.
- Who is the assignee on this patent?
- Univ Central Florida Res Found Inc, Ut Battelle Llc
- What technology area does this patent fall under?
- Primary CPC classification C01B35/04. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Oct 01 2019 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).