SPHERICAL CARBON NANOSTRUCTURE AND METHOD FOR PRODUCING SPHERICAL CARBON NANOSTRUCTURES

• US 20110189076A1
• Filed: 04/11/2011
• Published: 08/04/2011
• Est. Priority Date: 07/09/2004
• Status: Active Grant

• Current Assignee: Anthony S. Wagner
• Original Assignee: Anthony S. Wagner
• Inventors: Wagner, Anthony S.
• Granted Patent: US 8,263,037 B2
• Time in Patent Office: Days
• US Class Current: 423/445.R
• CPC Class Codes: B82Y 30/00 Nanotechnology for materials or surface science, e.g. nanocomposites
• CPC Class Codes: B82Y 40/00 Manufacture or treatment of nanostructures
• CPC Class Codes: C01B 32/18 Nanoonions; Nanoscrolls; Nanohorns; Nanocones; Nanowalls
• CPC Class Codes: Y10S 977/842 for carbon nanotubes or fullerenes
• CPC Class Codes: Y10S 977/844 Growth by vaporization or dissociation of carbon source using a high-energy heat source, e.g. electric arc, laser, plasma, e-beam

Abstract

A method for producing carbon nanostructures according to the invention includes injecting acetylene gas into a reactant liquid. The injected acetylene molecules are then maintained in contact with the reactant liquid for a period of time sufficient to break the carbon-hydrogen bonds in at least some of the acetylene molecules, and place the liberated carbon ions in an excited state. The liberated carbon ions in the excited state then traverse a surface of the reactant liquid and enter a collection area where carbon ions combine to produce carbon nanostructures.

Claims

1. A method for producing carbon nanostructures, the method including:

(a) maintaining a volume of reactant liquid having an energy level sufficient to (i) liberate a respective carbon ion from a respective acetylene molecule in a stream of acetylene molecules placed in the volume of reactant liquid, and to (ii) place the respective liberated carbon ion in an excited state;

(b) maintaining a collection area immediately above a surface of the volume of reactant liquid;

(c) injecting a stream of acetylene molecules into the volume of reactant liquid to liberate a respective carbon ion in an excited state from at least some of the acetylene molecules in the stream of acetylene molecules;

(d) collecting carbon nanostructures in the collection area as carbon ions in the excited state traverse the surface of the volume of reactant liquid and enter the collection area; and

(e) removing the carbon nanostructures from the collection area.

2. The method of claim 1 wherein the reactant liquid includes aluminum and maintaining the reactant liquid includes maintaining the aluminum at approximately 1650°

F.

3. The method of claim 1 further including providing one or more collection surfaces in the collection area, and the step of collecting the carbon nanostructures is performed on the one or more collection surfaces

4. The method of claim 3 wherein providing one or more collection surfaces in the collection area includes retaining one or more horizontally disposed plates in the collection area.

5. The method of claim 3 wherein providing one or more collection surfaces in the collection area includes retaining one or more vertically disposed plates the collection area.

6. The method of claim 3 further including maintaining the one or more collection surfaces at approximately 100°

F. to 590°

F.