Method of determining lifetime of a nanotube-producing catalyst
US8026100B2 · kind B2 · utility
0Cited by
0References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 24, 2008 |
| Grant date | Sep 27, 2011 |
| Priority date | — |
| Expiry date | Mar 24, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B2202/02
- WIPO fieldMicro-structural and nano-technology
- WIPO sectorChemistry
Abstract
The present teachings are directed toward methods of determining the lifetime of a catalyst for producing carbon nanotubes. The methods include providing different isotopically-labeled reaction components, primarily hydrocarbon sources containing different carbon isotopes, to the catalyst and measuring the Raman spectra of the carbon nanotubes produced with the different hydrocarbon sources.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.