Pretreatment method and carbon nanotube formation method

Abstract

The pretreatment method for carbon nanotube formation according to the present invention comprises a first plasma treatment process in which catalytic metal fine particles are formed by applying plasma to a catalytic metal layer and atomizing the catalytic metal, and a second plasma treatment process in which the catalytic metal fine particles are activated by applying plasma of a gas mixture, in which a hydrogen-containing gas and a nitrogen gas are mixed, to the catalytic metal fine particles. A co-catalyst layer formed of nitride such as TiN and TaN is preferably disposed below the catalytic metal layer. The co-catalyst layer is nitrated by the plasma of the gas mixture including the hydrogen-containing gas and the nitrogen gas and the activation ratio of the catalytic metal fine particles is increased.

Dependencies are inferred from the claim text.