Modification of nanotubes oxidation with peroxygen compounds
US7070753B2 · kind B2 · utility
21Cited by
1References
9Claims
0Family size
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Key dates
| Filing date | May 17, 2002 |
| Grant date | Jul 4, 2006 |
| Priority date | — |
| Expiry date | Aug 11, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S977/847
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method of chemically modifying carbon nanotubes having a diameter less than one micron comprising: contacting the nanotubes with a peroxygen compound selected from the group consisting of organic peroxyacids, inorganic peroxoacids and organic hydroperoxides, or a salt thereof, under oxidation conditions and thereby producing modified carbon nanotubes. Oxidation of the nanotubes increases the degree of dispersion of aggregates of nanotubes and aids in the disassembling of such aggregates. The dispersed nanotubes are used to prepare rigid structures and can be used in electrodes and capacitors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.