Method and apparatus for preparing boron nitride nanotubes by heat treating boron precursor prepared by using air-jet
US10370255B2 · kind B2 · utility
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Key dates
| Filing date | Apr 28, 2017 |
| Grant date | Aug 6, 2019 |
| Priority date | — |
| Expiry date | Jul 21, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2004/13
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method and apparatus for preparing boron nitride nanotubes (BNNTs) according to an embodiment may ensure mass-production, may increase yield by reducing a production time, and may prepare BNNTs with high purity. The method includes steps of providing a first powder including boron, forming a second powder including a boron precursor by nano-sizing the first powder, forming a precursor disk by mixing the second powder with a binder; and growing BNNTs on the precursor disk.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.