Catalyst system for a multi-walled carbon nanotube...

Nanotechnology – Nanostructure – Fullerenes

Reexamination Certificate

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C977S842000, C423S594100, C423S594500, C502S326000, C502S327000, C502S332000, C502S336000, C502S338000, C502S355000, C502S406000, C502S415000, C502S439000

Reexamination Certificate

active

07923615

ABSTRACT:
The present invention relates to a catalyst system for the selective conversion of hydrocarbons into multi-walled carbon nanotubes and hydrogen comprising a compound of the formula: (Ni,Co)FeyOz(Al2O3)w wherein ‘y’ represents the molar fraction of Fe relative to Co and Ni and wherein 0.11≦y≦9.0, 1.12≦z≦14.5, and 1.5≦w≦64.

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