skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Process for the removal of impurities from combustion fullerenes

Abstract

The invention generally relates to purification of carbon nanomaterials, particularly fullerenes, by removal of PAHs and other hydrocarbon impurities. The inventive process involves extracting a sample containing carbon nanomaterials with a solvent in which the PAHs are substantially soluble but in which the carbon nanomaterials are not substantially soluble. The sample can be repeatedly or continuously extracted with one or more solvents to remove a greater amount of impurities. Preferred solvents include ethanol, diethyl ether, and acetone. The invention also provides a process for efficiently separating solvent extractable fullerenes from samples containing fullerenes and PAHs wherein the sample is extracted with a solvent in which both fullerenes and PAHs are substantially soluble and the sample extract then undergoes selective extraction to remove PAHs. Suitable solvents in which both fullerenes and PAHs are soluble include o-xylene, toluene, and o-dichlorobenzene. The purification process is capable of treating quantities of combustion soot in excess of one kilogram and can produce fullerenes or fullerenic soot of suitable purity for many applications.

Inventors:
;
Publication Date:
Research Org.:
TDA Research, Inc., Wheat Ridge, CO (Unites States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1175445
Patent Number(s):
6,923,915
Application Number:
10/233,010
Assignee:
TDA Research, Inc. (Wheat Ridge, CO)
DOE Contract Number:  
FG03-98ER82692
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Alford, J. Michael, and Bolskar, Robert. Process for the removal of impurities from combustion fullerenes. United States: N. p., 2005. Web.
Alford, J. Michael, & Bolskar, Robert. Process for the removal of impurities from combustion fullerenes. United States.
Alford, J. Michael, and Bolskar, Robert. Tue . "Process for the removal of impurities from combustion fullerenes". United States. https://www.osti.gov/servlets/purl/1175445.
@article{osti_1175445,
title = {Process for the removal of impurities from combustion fullerenes},
author = {Alford, J. Michael and Bolskar, Robert},
abstractNote = {The invention generally relates to purification of carbon nanomaterials, particularly fullerenes, by removal of PAHs and other hydrocarbon impurities. The inventive process involves extracting a sample containing carbon nanomaterials with a solvent in which the PAHs are substantially soluble but in which the carbon nanomaterials are not substantially soluble. The sample can be repeatedly or continuously extracted with one or more solvents to remove a greater amount of impurities. Preferred solvents include ethanol, diethyl ether, and acetone. The invention also provides a process for efficiently separating solvent extractable fullerenes from samples containing fullerenes and PAHs wherein the sample is extracted with a solvent in which both fullerenes and PAHs are substantially soluble and the sample extract then undergoes selective extraction to remove PAHs. Suitable solvents in which both fullerenes and PAHs are soluble include o-xylene, toluene, and o-dichlorobenzene. The purification process is capable of treating quantities of combustion soot in excess of one kilogram and can produce fullerenes or fullerenic soot of suitable purity for many applications.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2005},
month = {8}
}

Patent:

Save / Share:

Works referenced in this record:

Fullerenes synthesis in combustion
journal, January 1992


Production of C60 and C70 fullerenes in benzene-oxygen flames
journal, August 1992

  • Howard, Jack B.; McKinnon, J. Thomas; Johnson, M. Elaine
  • The Journal of Physical Chemistry, Vol. 96, Issue 16
  • DOI: 10.1021/j100195a026

Combustion synthesis of fullerenes
journal, January 1992


Development prospects of the commercial production of fullerenes
journal, May 2000

  • Bogdanov, A. A.; Deininger, D.; Dyuzhev, G. A.
  • Technical Physics, Vol. 45, Issue 5
  • DOI: 10.1134/1.1259670

Supercritical CO 2 -Based Production of Fullerene Nanoparticles
journal, July 2000

  • Chattopadhyay, Pratibhash; Gupta, Ram B.
  • Industrial & Engineering Chemistry Research, Vol. 39, Issue 7
  • DOI: 10.1021/ie990729k

Extraction and Purification of Fullerenes: A Comprehensive Review
journal, August 1995

  • Théobald, Jérôme; Perrut, Michel; Weber, Jean-Victor
  • Separation Science and Technology, Vol. 30, Issue 14
  • DOI: 10.1080/01496399508013716

The formation of C60 and its precursors in naphthalene flames
journal, July 1994


Synthesis of Single-Walled Carbon Nanotubes in Flames
journal, October 2000

  • Diener, Michael D.; Nichelson, Noah; Alford, John M.
  • The Journal of Physical Chemistry B, Vol. 104, Issue 41
  • DOI: 10.1021/jp001233f

Solubility of C 60 Fullerene
journal, April 2001

  • Marcus, Yizhak; Smith, Allan L.; Korobov, M. V.
  • The Journal of Physical Chemistry B, Vol. 105, Issue 13
  • DOI: 10.1021/jp0023720

Formation and extraction of very large all-carbon fullerenes
journal, October 1991

  • Shinohara, Hisanori; Sato, Hiroyasu; Saito, Yahachi
  • The Journal of Physical Chemistry, Vol. 95, Issue 22
  • DOI: 10.1021/j100175a010

Fullerenes C60 and C70 in flames
journal, July 1991

  • Howard, Jack B.; McKinnon, J. Thomas; Makarovsky, Yakov
  • Nature, Vol. 352, Issue 6331
  • DOI: 10.1038/352139a0

An efficient fulleride production system
journal, January 1995

  • Datars, W. R.; Galts, S.; Olech, T.
  • Canadian Journal of Physics, Vol. 73, Issue 1-2
  • DOI: 10.1139/p95-006

Electronic absorption spectra determination of C60 content in soot produced in hydrocarbon flames
journal, March 2000

  • Zakharov, A. Y.; Zobnin, A. V.; Sinel’shchikov, V. A.
  • Journal of Applied Spectroscopy, Vol. 67, Issue 2
  • DOI: 10.1007/BF02681858

Laser Ablation Mass Spectrometry of Pyrolyzed Koppers Coal-Tar Pitch:  A Precursor for Fullerenes and Metallofullerenes
journal, November 1999

  • Zhang, Rui; Achiba, Yohji; Fisher, Keith J.
  • The Journal of Physical Chemistry B, Vol. 103, Issue 44
  • DOI: 10.1021/jp9910791

Fullerene production
journal, December 1993


Solubility of fullerene (C60) in a variety of solvents
journal, April 1993

  • Ruoff, R. S.; Tse, Doris S.; Malhotra, Ripudaman
  • The Journal of Physical Chemistry, Vol. 97, Issue 13
  • DOI: 10.1021/j100115a049

Separation and spectroscopy of fullerenes
journal, January 1992


The Higher Fullerenes: Isolation and Characterization of C76, C84, C90, C94, and C70O, an Oxide of D5h-C70
journal, April 1991


Fullerenes
journal, October 1991


Formation of C60 by pyrolysis of naphthalene
journal, December 1993

  • Taylor, Roger; Langley, G. John; Kroto, Harold W.
  • Nature, Vol. 366, Issue 6457
  • DOI: 10.1038/366728a0

Solid C60: a new form of carbon
journal, September 1990

  • Krätschmer, W.; Lamb, Lowell D.; Fostiropoulos, K.
  • Nature, Vol. 347, Issue 6291
  • DOI: 10.1038/347354a0