Catalyst, Catalyst Precursor, Production Process, and Resulting High Purity and Controlled Morphology Carbon Nanotubes
AssigneeChasm Advanced Materials, Inc.
InventorsRicardo A. Prada Silvy, Sathish Kumar Lageshetty, Dennis McAlister, David J. Arthur
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Abstract
A catalyst, catalyst precursor, and carbon nanotubes grown using the catalyst. The catalyst includes a support comprising alumina and a cobalt species on a surface of the support, wherein cobalt is the sole active catalyst species for carbon nanotube growth. The support surface is iron-free.
Claims29
A catalyst composition for growing carbon nanotubes (CNT), comprising:
- an alumina support;
- and
- a cobalt species on a surface of the support, wherein the cobalt species is the sole active catalyst species for CNT growth.
A method for preparing a catalyst composition that comprises a support comprising alumina, and a cobalt species on a surface of the support, wherein the cobalt species is the sole active catalyst species for carbon nanotube (CNT) growth, the method comprising:
- providing an aluminum hydroxide support precursor;
- contacting the aluminum hydroxide support precursor with a solution that comprises at least a cobalt salt to create a paste;
- and
- drying and calcining the paste to create the catalyst composition.
Dependencies are inferred from the claim text.