| 摘要 |
<p>Disclosed is a method for producing carbon fibers, which comprises a step wherein: a supported catalyst is obtained by having granular carriers such as calcium carbonate, calcium hydroxide or calcium oxide support a main catalyst element such as Fe, Co or Ni and a promoter element such as Ti, V, Cr, W or Mo; fibrous carbon is synthesized by bringing the supported catalyst into contact with a carbon element-containing substance at a synthesis reaction temperature; and then the thus-obtained fibrous carbon is subjected to a heat treatment at a temperature of 2,000°C or more. The granular carriers are formed of a substance that is thermally decomposed at temperatures around the synthesis reaction temperature.</p> |
