Boron nitride nanotubes and process for production thereof
US9862604B2 · kind B2 · utility
3Cited by
2References
16Claims
0Family size
Inventors
Key dates
| Filing date | Apr 4, 2014 |
| Grant date | Jan 9, 2018 |
| Priority date | — |
| Expiry date | Apr 4, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/083
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A process for producing boron nitride nanotubes (BNNTs) involves providing a one or more sources of boron, nitrogen and hydrogen to a stable induction plasma to form a reaction mixture of boron, nitrogen and hydrogen in the plasma, and cooling the reaction mixture to form BNNTs. The process is capable of very efficiently producing small (10 nm or less diameter), reasonably pure BNNTs continuously in high yield at or around atmospheric pressure without the need to use metals as the catalyst. The process may be further modified by providing one or more sources of carbon to produce BNNTs doped with carbon (e.g. BCNNT).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.