| 摘要 |
PROBLEM TO BE SOLVED: To provide a method and an apparatus for producing carbon nanotubes, and more particularly to provide a method and an apparatus for more efficiently mass-producing carbon nanotubes by a chemical vapor deposition using a catalyst. SOLUTION: The gas-solid contact of a carbon-containing gas and a solid catalyst layer is satisfactorily maintained by mixing alumina balls or the like into the solid catalyst layer as a diluent. Further, the solid catalyst is carried in the flowing direction of the carbon-containing gas by stirring a diluent layer. Thus, the synthesis reaction of the carbon nanotubes having useful diameters is continuously conducted. COPYRIGHT: (C)2006,JPO&NCIPI
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