Carbon nanotube sponge
US9669383B2 · kind B2 · utility
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Key dates
| Filing date | May 15, 2015 |
| Grant date | Jun 6, 2017 |
| Priority date | — |
| Expiry date | Dec 31, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J21/185
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present disclosure relates to a carbon nanotube sponge comprising: a plurality of carbon nanotubes combined by van der Waals force to form a free-standing structure, wherein a plurality of micropores are defined by adjacent carbon nanotubes; and a plurality of carboxyl groups and hydroxyl groups located on surfaces of the plurality of carbon nanotubes; wherein a weight percentage of the carboxyl groups in the carbon nanotube sponge ranges from about 10% to about 20%, and a weight percentage of the hydroxyl groups in the carbon nanotube sponge ranges from about 5% to about 15%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.