| abstract |
A method for growing single-walled carbon nanotubes is provided. Preparation of a catalyst comprising a catalytic metal, such as iron and molybdenum, and a magnesium oxide support material, and said catalyst and gas at sufficient temperature and sufficient contact time to produce single-walled carbon nanotubes Contacting the carbon-containing feedstock. The weight ratio of iron to molybdenum ranges from about 2: 1 to about 10: 1, and these metals may contain up to about 10% by weight of MgO. This catalyst may be sulfided. Methane is a suitable carbon-containing feedstock. This process can be carried out in a batch, continuous or semi-continuous manner in a reactor such as a transport reactor, fluidized bed reactor, moving bed reactor and combinations thereof. The method also includes a catalyst comprising at least one Group VIB or Group VIIIB metal on a support such as magnesia, zirconia, silica and alumina, wherein the catalyst is a single-walled carbon nanotube using a sulfided catalyst. Including manufacturing. [Selection figure] None |