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US 2026/0257202 A1Published application
Catalyst for the production of carbon nanotubes and the production method thereof
AssigneeLG Chem, Ltd.
InventorsSung Jin KIM, Se Hyun KIM, Eu Gene OH, Og Sin KIM, Min Yeong GIM
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Abstract
A catalyst for producing carbon nanotubes, and a method for preparing the catalyst. Carbon nanotubes produced with the catalyst of the present invention have a large specific surface area and a low powder resistance, and thus, are particularly suitable for use as a conductive material in secondary batteries.
Claims10
A catalyst for producing carbon nanotubes, the catalyst comprising:
- a cocatalyst component and a main catalyst component supported on a hydrotalcite;
- wherein the content of the main catalyst component is 10% by weight or less based on the total weight of the catalyst;
- and
- the molar ratio of the main catalyst component to the cocatalyst component is 1.0 to 10:1.0.
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A method of preparing a catalyst for producing carbon nanotubes, the method including:
- preparing a catalyst composition by adding a cocatalyst precursor, a main catalyst precursor, and an organic acid to a solvent (S1);
- adding a hydrotalcite to the catalyst composition to form a mixture, and drying and calcining the mixture to obtain a catalyst (S2);
- wherein the molar ratio of the main catalyst precursor to the cocatalyst precursor added in step (S1) is 1.0 to 10:1.0;
- and
- the calcination is performed at 150 to 450° C.
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Dependencies are inferred from the claim text.