Preparation of nanosheets via ball milling in the presence of reactive gases
US-2019247858-A1 · Aug 15, 2019 · US
Porous boron nitride and method of preparing the same
US9796595B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9796595-B2 |
| Application number | US-201314417296-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 24, 2013 |
| Priority date | Jul 27, 2012 |
| Publication date | Oct 24, 2017 |
| Grant date | Oct 24, 2017 |
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- Title
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Abstract
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This disclosure relates to porous boron nitride and a method for preparing the same. The porous boron nitride of the present invention may be obtained by mixing a boron source with a nitrogen source, heating the mixture to form a compound, and then, extracting elements other than boron and nitrogen. The porous boron nitride of the present invention comprises both micropores and mesopoers, and it has a large specific surface area, and thus, may be usefully used in various fields.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for preparing porous boron nitride comprising the steps of: mixing TiB 2 with TiN; heating the mixture and reacting it with halogen gas; and heating the reaction mixture under hydrogen atmosphere. 2. The method according to claim 1 , further comprising the step of pulverizing the mixture, simultaneously with or after the step of mixing the boron source with the nitrogen source. 3. The method according to claim 2 , wherein the step of pulverizing the mixture is conducted using a high energy ball mill. 4. The method according to claim 1 , wherein the halogen gas is chlorine(Cl 2 ) gas. 5. The method according to claim 1 , wherein the step of reacting the mixture with halogen gas is conducted at a temperature of 300 to 1,200° C. for 5 minutes to 5 hours. 6. The method according to claim 1 , wherein the step of heating under hydrogen atmosphere is conducted at a temperature of 400 to 1,000° C.
Assignees
Inventors
Classifications
- C01B35/14Primary
Compounds containing boron and nitrogen, phosphorus, sulfur, selenium or tellurium · CPC title
Pore volume · CPC title
- C01B35/146Primary
Compounds containing boron and nitrogen, e.g. borazoles (ammonium tetrafluoborates C01B35/063; ammonium borates C01B35/12) · CPC title
Surface area · CPC title
Pore diameter · CPC title
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- What does patent US9796595B2 cover?
- This disclosure relates to porous boron nitride and a method for preparing the same. The porous boron nitride of the present invention may be obtained by mixing a boron source with a nitrogen source, heating the mixture to form a compound, and then, extracting elements other than boron and nitrogen. The porous boron nitride of the present invention comprises both micropores and mesopoers, and i…
- Who is the assignee on this patent?
- Hanwha Chemical Corp, Snu R&Db Foundation
- What technology area does this patent fall under?
- Primary CPC classification C01B35/14. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Oct 24 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).