Method for preparing single walled carbon nanotubes
US7862795B2 · kind B2 · utility
30Cited by
16References
26Claims
0Family size
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Key dates
| Filing date | Nov 16, 2005 |
| Grant date | Jan 4, 2011 |
| Priority date | — |
| Expiry date | Jul 19, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S977/843
- WIPO fieldMicro-structural and nano-technology
- WIPO sectorChemistry
Abstract
Methods of preparing single walled carbon nanotubes are provided. Carbon containing gas is contacted with a supported metal catalyst under reaction conditions to yield at least 90% single walled carbon nanotubes and at least 1 gram single walled carbon nanotubes/gram metal catalyst. The support material may be calcined at temperatures between 150 and 600° C., and may have at least one oxidized planar surface. Reaction conditions include less than 10 atmospheres pressure and less than 800° C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.