Catalyst composition for the synthesis of multi-walled carbon nanotubes
US9186656B2 · kind B2 · utility
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5Claims
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Key dates
| Filing date | Nov 5, 2012 |
| Grant date | Nov 17, 2015 |
| Priority date | — |
| Expiry date | Jul 21, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2918
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention relates to a catalyst composition for the synthesis of multi-walled carbon nanotube having high apparent density in a manner of high yield. More particularly, this invention relates to a multi-component metal catalyst composition comprising i) main catalyst of Fe and Mo, ii) inactive support of Al and iii) optional co-catalyst at least one selected from Co, Ni, Ti, Mn, W, Sn or Cu. Further, the present invention affords multi-walled carbon nanotube having 5˜15 nm of fibrous diameter and 0.5˜4 μm bundle diameter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.