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US 8,895,105 B2Granted
Receptor-catalyst growth process for carbon nanotubes
AssigneeUniversity of Dayton
InventorsKhalid Lafdi, Lingchuan Li, Matthew C. Boehle, Alexandre Lagounov
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Abstract
A method of growing carbon nanomaterials on a substrate wherein the substrate is exposed to an oxidizing gas; a seed material is deposited on the substrate to form a receptor for a catalyst on the surface of said substrate; a catalyst is deposited on the seed material by exposing the receptor on the surface of the substrate to a vapor of the catalyst; and substrate is subjected to chemical vapor deposition in a carbon containing gas to grow carbon nanomaterial on the substrate.
Claims17
A method of growing carbon nanomaterials on a substrate comprising:
- providing a substrate having a surface;
- exposing at least a portion of said surface of said substrate to an oxidizing gas;
- depositing a seed material to form a receptor for a catalyst on the surface of said substrate, the seed material being a metal compound applied to the oxidized surface and having receptor sites for the catalyst, wherein the seed material is deposited on the substrate by treating the substrate with a solution of the seed material;
- depositing a catalyst directly on the seed material by exposing the receptor on the surface of the substrate to a vapor of the catalyst;
- and
- subjecting the catalyst on the surface of the substrate to chemical vapor deposition in a carbon containing gas to cause growth of the carbon nanomaterial.
3 more elements
Dependencies are inferred from the claim text.