METHOD OF MAKING CATALYST FOR CARBON NANOTUBES AND CARBON NANOFIBERS AND CATALYST FOR CARBON NANOTUBES AND NANOFIBERS THEREOF

摘要

Provided are a process for preparing a catalyst and the catalyst itself useful for manufacturing carbon nano-tubes and nano-fibers with high productivity but simplification of procedures of the process compared to existing wet type methods such as precipitation and/or co-precipitation. The process comprises steps of heating oxygen compound of transition metal at 800 deg.C to 1500 deg.C in an oxidation atmosphere to form a transition metal oxide; and breaking the transition metal oxide into microfine particles thereof. The transition metal is preferably selected from a group consisting of Ni, Co, Fe, Mo and Cr. Also, the oxygen compound of the transition metal is preferably selected from a group consisting of oxide, hydroxide, carbonate, sulfate and nitride of the transition metal. The breaking process is for breaking the transition metal oxide into particles having 500 microns or less of average particle size.