Title: Production of fullerenic nanostructures in flames

Abstract

A method for the production of fullerenic nanostructures is described in which unsaturated hydrocarbon fuel and oxygen are combusted in a burner chamber at a sub-atmospheric pressure, thereby establishing a flame. The condensibles of the flame are collected at a post-flame location. The condensibles contain fullerenic nanostructures, such as single and nested nanotubes, single and nested nanoparticles and giant fullerenes. The method of producing fullerenic soot from flames is also described.

Inventors:

Howard, Jack B ^[1]; Vander Sande, John B ^[2]; Chowdhury, K Das ^[3]

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+ Show Inventor Affiliations

1. Winchester, MA
2. Newbury, MA
3. Cambridge, MA

Issue Date:

Fri Jan 01 00:00:00 EST 1999

Research Org.:

Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)

OSTI Identifier:

872665

Patent Number(s):

5985232

Assignee:

Massachusetts Institute of Technology (Cambridge, MA)

Patent Classifications (CPCs):

B - PERFORMING OPERATIONS B82 - NANOTECHNOLOGY B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01B - NON-METALLIC ELEMENTS

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B - PERFORMING OPERATIONS B82 - NANOTECHNOLOGY B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES

B82Y30/00 - Nanotechnology for materials or surface science, e.g. nanocomposites
B82Y40/00 - Manufacture or treatment of nanostructures

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01B - NON-METALLIC ELEMENTS

C01B32/15 - Nano-sized carbon materials
C01B32/152 - Fullerenes
C01B32/154 - Preparation

F - MECHANICAL ENGINEERING F23 - COMBUSTION APPARATUS F23D - BURNERS

F23D2900/21007 - for producing soot, e.g. nanoparticle soot

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10S - TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

Y10S977/734 - Fullerenes, i.e. graphene-based structures, such as nanohorns, nanococoons, nanoscrolls or fullerene-like structures, e.g. WS2 or MoS2 chalcogenide nanotubes, planar C3N4, etc.
Y10S977/742 - Carbon nanotubes, CNTs
Y10S977/844 - Growth by vaporization or dissociation of carbon source using a high-energy heat source, e.g. electric arc, laser, plasma, e-beam
Y10S977/845 - Purification or separation of fullerenes or nanotubes

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DOE Contract Number:  

FG02-84ER13282

Resource Type:

Patent

Country of Publication:

United States

Language:

English

Subject:

production; fullerenic; nanostructures; flames; method; described; unsaturated; hydrocarbon; fuel; oxygen; combusted; burner; chamber; sub-atmospheric; pressure; establishing; flame; condensibles; collected; post-flame; location; contain; single; nested; nanotubes; nanoparticles; giant; fullerenes; producing; soot; hydrocarbon fuel; atmospheric pressure; unsaturated hydrocarbon; saturated hydrocarbon; fullerenic nanostructures; burner chamber; condensibles contain; /423/