Nano-material and method of fabrication
AssigneeConsolidated Nuclear Security, LLC
InventorsPaul A. Menchhofer, Roland D. Seals, Jane Y. Howe, Wei Wang
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Abstract
A fluffy nano-material and method of manufacture are described. At 2000× magnification the fluffy nanomaterial has the appearance of raw, uncarded wool, with individual fiber lengths ranging from approximately four microns to twenty microns. Powder-based nanocatalysts are dispersed in the fluffy nanomaterial. The production of fluffy nanomaterial typically involves flowing about 125 cc/min of organic vapor at a pressure of about 400 torr over powder-based nano-catalysts for a period of time that may range from approximately thirty minutes to twenty-four hours.
Claims27
A method of manufacturing a fluffy nanomaterial, comprising:
- contacting a granulated metal support material with a solution including metal ions from a metal salt to form nanocatalysts;
- heating the nanocatalysts to a temperature ranging from about 400° C. to about 1500° C.;
- and
- exposing the nanocatalysts to a flow of organic vapor to form fluffy nanomaterial having individual carbon nanotubes anchored directly to the support material.
A method of manufacturing a fluffy nanomaterial, comprising:
- contacting metal support particles having a plurality of nano-scale features formed on the surface of each of the metal particles with a solution including metal ions from a metal salt to form nanocatalysts;
- heating the nanocatalysts to a temperature ranging from about 400° C. to about 1500° C.;
- and
- exposing the nanocatalysts to a flow of organic vapor to form fluffy nanomaterial having individual carbon nanotubes anchored directly to the metal support particles.
A method of manufacturing a fluffy nanomaterial, comprising:
- ball milling metal support particles until a plurality of nano-scale features are formed adjacent the surface of each of the metal support particles;
- contacting the metal support particles with a solution including metal ions from a metal salt to form metal nanocatalysts;
- heating the metal nanocatalysts to a temperature ranging from about 400° C. to about 1500° C.;
- and
- exposing the metal nanocatalysts to a flow of organic vapor for a time period greater than thirty minutes to form fluffy nanomaterial having individual carbon nanotubes with a length of at least 100 microns.
Dependencies are inferred from the claim text.