| 摘要 |
PURPOSE:To obtain the titled carbonaceous material having sufficiently high aspect ratio and excellent electrical conductivity, etc., by introducing a hydrocarbon, a specific organic metal compound, and optionally a carrier gas into a reaction zone, and subjecting the hydrocarbon to the thermal decomposition and catalytic reaction. CONSTITUTION:An alumina furnace tube 2 is heated at about 1,030 deg.C in the electrical furnace 1. An organic metal compound of a metal belonging to the group IVa, Va, VIa or VIII of the periodic table (e.g. cyclopentadienyl iron) is introduced together with N2 gas in vapor phase through the pipe 3 to the alumina furnace tube 2 at the feeding zone heated to 100-500 deg.C. At the same time, a hydrocarbon which is solid, liquid or gaseous at room temperature (e.g. benzene) optionally accompanied with a carrier gas such as H4d2 is introduced through the pipe 4 into the furnace tube 2 at the reaction temperature zone heated at 800-1,100 deg.C. The hydrocarbon is subjected to the thermal decomposition and catalytic reaction at a residence tie of <=5min. The titled carbonaceous material produced by the above process has a diameter of 0.05-4mu, an aspect ratio of 20-99, and hemispherical parts at both ends, and contains C layers made of graphite or convertible easily to graphite, having solid cross-section, and arranged coaxially parallel to the long axis. |
