Four-layer type catalyst substrate for CNT production , board carbide layer with CNT, with carbide layer CNT, CNT process , CNT recovery methods and CNT continuous production equipment

摘要

PROBLEM TO BE SOLVED: To synthesize exquisitely aligned CNTs on a catalyst layer, and to achieve reuse of a substrate layer after separation and recovery of CNTs.SOLUTION: In a four layer type catalyst base body 1 for CNT production, a heat-resistant resin layer 4 is formed on the substrate layer 2, an Al layer 6 is formed on the heat-resistant resin layer 4, and the catalyst layer 8 for CNT synthesis is formed on the Al layer 6. Also a four layer type catalyst base body belt is optionally provided, in which the substrate layer 2 is a substrate belt formed with a shape of a belt, and the heat-resistant resin layer 4, the Al layer 6, and the catalyst layer 8 are laminated on the substrate belt. The aligned CNTs are synthesized on the catalyst layer 8 by forming the heat-resistant resin layer 4 which has a heat-resistant temperature of 400°C or more, preferably 500°C or more, and which prevents a reaction between the substrate layer 2 and the catalyst layer 8 upon the CNT synthesis, and reuse of the substrate layer 2 including the substrate belt is achieved because a surface of the substrate layer 2 is in a state previous to the synthesis even after separation and recovery of CNTs.