Process for production of carbon nanotube
US9096435B2 · kind B2 · utility
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8Claims
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Key dates
| Filing date | Oct 26, 2011 |
| Grant date | Aug 4, 2015 |
| Priority date | — |
| Expiry date | Oct 26, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J21/04
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention relates to a method for producing carbon nanotubes, comprising a synthesis step of synthesizing carbon nanotubes on a support on which a catalyst is supported by flowing a source gas consisting of acetylene, carbon dioxide, and an inert gas over the support, wherein in the source gas, a partial pressure of the acetylene is 1.33×101 to 1.33×104 Pa, a partial pressure of the carbon dioxide is 1.33×101 to 1.33×104 Pa, and a partial pressure ratio of the acetylene to the carbon dioxide (acetylene/carbon dioxide) is in the range of 0.1 to 10.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.