Production of carbon nanotubes

Details Production of carbon nanotubes Production of carbon nanotubes

D - Textiles, Paper

01

F

D01F 9/00 (2006.01) C01B 31/02 (2006.01) D01F 9/12 (2006.01)

Patent

CA 2565139

The invention relates to production of carbon nanotubes, more specific the invention relates to improvements in the arc discharge method for producing high quality multi-walled carbon nanotubes (MWNT), in that the temperature of the anode is prevented from becoming excessively high by providing cooling means, at its lower parts facing the cathode, and in that the anode tip is provided with a narrow end section in order to obtain a better control with the initiation of the arc discharge.

La présente invention concerne la production de nanotubes de carbone, et plus spécifiquement des améliorations apportées à un procédé de décharge d'arc destiné à produire des nanotubes de carbone à parois multiples (MWNT) de qualité élevée, en évitant à la température de l'anode d'être excessivement élevée, grâce à l'utilisation d'un système de refroidissement qui fait face à la cathode dans ses parties inférieures, et en donnant à la pointe de l'anode une section d'extrémité étroite qui permet un meilleur contrôle de l'allumage de la décharge d'arc.

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