Graphitic polyhederal crystals in the form of nanotubes, whiskers and nanorods, methods for their production and uses thereof
US6740403B2 · kind B2 · utility
19Cited by
55References
33Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 2, 2001 |
| Grant date | May 25, 2004 |
| Priority date | — |
| Expiry date | Feb 16, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2918
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Isolated graphitic polyhedral crystal and methods for their isolation are provided wherein the crystals have graphite sheets arranged in a plurality of layers to form an elongated structure having a long axis and a diameter and having 7 or more external facets running substantially the length of the long axis, and take a variety of forms, such as needles, giant nanotubes, nanorods, whiskers, rings, cones, double tipped pyramids and others, as well as their use in a variety of nanoscale devices and endproducts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.