Varied morphology carbon nanotubes and method for their manufacture
US7157068B2 · kind B2 · utility
74Cited by
1References
42Claims
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Key dates
| Filing date | May 20, 2002 |
| Grant date | Jan 2, 2007 |
| Priority date | — |
| Expiry date | Sep 7, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S977/843
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention describes the preparation of carbon nanotubes of varied morphology, catalyst materials for their synthesis. The present invention also describes reactor apparatus and methods of optimizing and controlling process parameters for the manufacture carbon nanotubes with pre-determined morphologies in relatively high purity and in high yields. In particular, the present invention provides methods for the preparation of non-aligned carbon nanotubes with controllable morphologies, catalyst materials and methods for their manufacture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.