Catalysts for manufacturing carbon substances
US7405178B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 23, 2002 |
| Grant date | Jul 29, 2008 |
| Priority date | — |
| Expiry date | Dec 23, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B2202/36
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A catalyst for manufacturing carbon substances, such as carbon nanotube that has a diameter of 1000 nm or less, the catalyst containing at least iron, cobalt or nickel of a first element group and tin or indium of a second element group. The catalyst can be formed by at least tin and indium in addition to cobalt or nickel. The former catalyst provides a 2-component type catalyst and a multi-component type catalyst that is composed on the basis of the 2-component type catalyst, and the later catalyst provides a 3-component type catalyst and a multi-component type catalyst that is composed on the basis of the 3-component type catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.