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US 2014/0272137 A1Published application
Method for Growth of Vertically Aligned Carbon Nanotubes on Diamond Substrates
AssigneeHonda Motor Co., Ltd.
InventorsRahul Rao, Avetik Harutyunyan
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Abstract
Method of growing carbon nanotubes which are substantially vertically aligned on a diamond-based substrate via a chemical vapor deposition system utilizing an iron-based catalyst is disclosed.
Claims14
A method for producing carbon nanotubes comprising:
- providing a diamond-based substrate;
- treating the diamond-based substrate to obtain a coating of carbon-based material thereon;
- contacting a catalyst capable of producing carbon nanotubes with the carbon-coated diamond-based substrate;
- exposing the catalyst to a vapor phase carbon source, and producing carbon nanotubes.
1 more element
A method for producing an array of vertically aligned carbon nanotubes comprising:
- providing a diamond-based substrate having a top surface;
- heating the diamond-based substrate under an environment to a temperature sufficient to coat at least the top surface with a carbon layer;
- providing a vapor phase composition containing a catalyst capable of producing carbon nanotubes and a carbon source;
- contacting the vapor phase composition with the carbon layer;
- depositing particles of the catalyst on the carbon layer, and
- producing an array of vertically aligned carbon nanotubes on the top surface of the diamond-based substrate.
3 more elements
Dependencies are inferred from the claim text.