Nanocyl S.a.

Fang-Yue Chan

Julien Amadou

Matthieu Houlle

Jean-Philippe Joris

Cédric De Villepin

Juan Hermoso Limon

An iron-free supported catalyst for the selective conversion of hydrocarbons to carbon nanotubes may include cobalt and vanadium as active catalytic metals in any oxidation state on a catalyst support comprising aluminum oxide hydroxide. The mass ratio of cobalt to vanadium is between 2 and 15; the mass ratio of cobalt to aluminum is between 5.8×10and 5.8×10; and the mass ratio vanadium to aluminum is between 5.8×10and 8.7×10. The present disclosure is further related to a method for the production of this iron-free supported catalyst and to a method for the production of carbon nanotubes using the iron-free supported catalyst.

Catalyst for MWCNT production

An iron-free supported catalyst for the selective conversion of hydrocarbons to carbon nanotubes may include cobalt and vanadium as active catalytic metals in any oxidation state on a catalyst support comprising aluminum oxide hydroxide. The mass ratio of cobalt to vanadium is between 2 and 15; the mass ratio of cobalt to aluminum is between 5.8 10and 5.8 10; and the mass ratio vanadium to aluminum is between 5.8 10and 8.7 10. The present disclosure is further related to a method for the production of this iron-free supported catalyst and to a method for the production of carbon nanotubes using the iron-free supported catalyst.

The present invention relates to a catalytic composition for the synthesis of carbon nanotubes, comprising an active catalyst and a catalytic support, the active catalyst comprising a mixture of iron and cobalt in any oxidation form and the catalytic support comprising exfoliated vermiculite.

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Namur, Belgium

Fang-Yue Chan