CATALYST FOR PREPARING CARBON NANOCOIL, METHOD FOR PREPARATION THEREOF, METHOD FOR PREPARING CARBON NANOCOIL AND CARBON NANOCOIL

摘要

A catalyst for preparing a carbon nanocoil which comprises a carbide catalyst comprising the elements of (transition metal element, In, C) or (transition metal element, Sn, C), or comprises a metal catalyst comprising the elements of (Fe, Al, Sn) or (Fe, Cr, Sn). The transition metal element of the carbide catalyst is preferably Fe, Co or Ni. More preferable catalysts include Fe3InC0.5, Fe3InC0.5Snw and Fe3 SnC. A catalyst comprising a porous carrier and the above catalyst carried thereon is capable of controlling the diameters of the wire and the coil of the resulting carbon nanocoil. The above catalyst allows the preparation of a carbon nanocoil with high efficiency, and it has been found through taking the catalyst nucleus attached on the apex of a carbon nanocoil as a true catalyst for preparing the carbon nanocoil and determining the structure of the catalyst nucleus.