Single-walled carbon nanotube catalyst

B - Operations – Transporting – 01 – J

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B01J 37/16 (2006.01) B01J 23/78 (2006.01)

Patent

CA 2597129

An activated catalyst capable of selectively growing single-walled carbon nanotubes when reacted with carbonaceous gas is provided. The activated catalyst is formed by reducing a catalyst that comprises a complex oxide. The complex oxide may be of formula AxByOz, wherein x/y <= 2 and z/y <= 4, A being a Group VIII element and B being an element such that an oxide of element B is not reducible in the presence of hydrogen at a temperature less than or equal to about 900~C. Methods of making, uses for and carbon fibril-containing product made with these activated catalysts are also provided.

L'invention concerne un catalyseur activé capable de faire croître sélectivement des nanotubes de carbone monofeuillets lorsqu'il réagit avec un gaz carboné. Le catalyseur activé est formé par réduction d'un catalyseur comprenant un oxyde complexe. Ledit oxyde complexe peut être représenté par la formule AxByOz, dans laquelle x/y <= 2 et z/y <= 4, A étant un élément du groupe VIII et B étant un élément tel qu'un oxyde d'élément B ne peut être réduit en présence d'hydrogène à une température inférieure ou égale à environ 900°C. L'invention concerne également des procédés de production et l'utilisation d'un produit contenant des fibrilles de carbone fabriqué au moyen desdits catalyseurs activés.

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