CARBON NANOTUBE HYBRID SYSTEM USING CARBIDE-DERIVED CARBON, A METHOD OF MAKING THE SAME, AN ELECTRON EMITTER COMPRISING THE SAME, AND AN ELECTRON EMISSION DEVICE COMPRISING THE ELECTRON EMITTER
First Claim
1. A carbon nanotube hybrid system, comprising:
- carbide-derived carbon formed by reacting a carbide compound and a halogen group containing gas to extract elements of the carbide compound except carbon;
a metal supported on the carbide-derived carbon; and
carbon nanotubes grown on the carbide-derived carbon from a supplied carbon source.
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Abstract
A carbon nanotube hybrid system includes: a carbide-derived carbon prepared by reacting a carbide compound and a halogen group containing gas to extract elements of the carbide compound except carbons; metals supported on the carbide-derived carbon or remaining in the carbide-derived carbon; and carbon sources from which carbon nanotubes are grown from the carbide-derived carbon. A method of preparing the carbon nanotube hybrid system includes preparing the carbide-derived carbon, extracting elements therefrom, and growing carbon nanotubes from the carbide-derived carbon. The carbon nanotube hybrid system has excellent uniformity and a long lifetime. An electron emitter having improved electron emitting properties can be inexpensively prepared using the carbon nanotube hybrid system compared to conventional carbon nanotubes. An electron emission device having excellent electron emitting properties can be prepared using the electron emitter.
417 Citations
20 Claims
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1. A carbon nanotube hybrid system, comprising:
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carbide-derived carbon formed by reacting a carbide compound and a halogen group containing gas to extract elements of the carbide compound except carbon; a metal supported on the carbide-derived carbon; and carbon nanotubes grown on the carbide-derived carbon from a supplied carbon source. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 19, 20)
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15. A method of preparing a carbon nanotube hybrid system, the method comprising:
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extracting all elements of a carbide compound except carbon by reacting the carbide compound and a halogen group containing gas; mixing the carbide-derived carbon with a catalyst metal-containing compound and performing a hydrogen reduction reaction to transfer a catalyst metal from the catalyst metal-containing compound to the carbide-derived carbon; and reacting the prepared carbide-derived carbon and a carbon source to grow carbon nanotubes from the prepared carbide-derived carbon.
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16. A method of preparing a carbon nanotube hybrid system, the method comprising:
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extracting elements of a carbide compound except carbon by reacting the carbide compound and a halogen group containing gas; and reacting the carbide-derived carbon and a carbon source to grow carbon nanotubes from the prepared carbide-derived carbon. - View Dependent Claims (17, 18)
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Specification