Process for purifying carbon nanotubes made on refractory oxide supports
US7488875B2 · kind B2 · utility
1Cited by
2References
20Claims
0Family size
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Key dates
| Filing date | Dec 3, 2004 |
| Grant date | Feb 10, 2009 |
| Priority date | — |
| Expiry date | Apr 17, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S977/845
- WIPO fieldMicro-structural and nano-technology
- WIPO sectorChemistry
Abstract
A carbon nanotube material that comprises carbon nanotubes, a magnesia support and a catalyst metal can be purified by contacting it with a mixture comprising carbon dioxide and water. At least some of the magnesia support is reacted to form water-soluble compounds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.