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US 8,431,189 B2Granted
Carbon nanotube-nanofiber composite structure
AssigneeKorea University Research and Business Foundation
InventorKwangyeol Lee
Life of this patent
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Abstract
A composite structure and methods of making and using are provided. The composite structure includes at least one nanofiber having silicon-based material and at least one carbon nanotube associated with the nanofiber. The silicon-based material includes one or more of silicon carbide, silicon oxycarbide, silicon nitride and silicon oxide.
Claims18
A method for preparing a composite structure, comprising:
- mixing a metal nanoparticle with at least one nanofiber in an inert solvent to form a mixture, wherein the at least one nanofiber comprises silicon nitride;
- and
- heating the mixture to a temperature effective to associate the metal nanoparticle with the at least one nanofiber;
- and
- growing at least one carbon nanotube on the at least one nanofiber to obtain a composite structure.
2 more elements
A method for preparing a composite structure, comprising:
- heating at least one nanofiber to form at least one silicon nitride based nanofiber, the at least one nanofiber comprising polysilazane;
- mixing a metal nanoparticle with the at least one silicon nitride based nanofiber in an inert solvent to form a mixture;
- heating the mixture to a temperature effective to associate the metal nanoparticle with the at least one silicon nitride based nanofiber, the temperature being in a range from about 100° C. to about 2100° C.;
- and
- growing at least one carbon nanotube on the at least one silicon nitride based nanofiber to obtain a composite structure.
2 more elements
A method for preparing a composite structure, comprising:
- heating at least one nanofiber in an ammonia gas atmosphere to form at least one silicon nitride based nanofiber, the at least one nanofiber comprising polysilazane;
- mixing a metal nanoparticle with the at least one silicon nitride based nanofiber in an inert solvent to form a mixture;
- heating the mixture to a temperature effective to associate the metal nanoparticle with the at least one silicon nitride based nanofiber;
- and
- growing at least one carbon nanotube on the at least one silicon nitride based nanofiber to obtain a composite structure, a ratio of a nanotube diameter of the at least one carbon nanotube to a nanofiber diameter of the at least one silicon nitride based nanofiber being in a range from about 1:100 to about 1:2.
2 more elements
Dependencies are inferred from the claim text.