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Title: Methods for purifying carbon materials

Abstract

Methods of purifying samples are provided that are capable of removing carbonaceous and noncarbonaceous impurities from a sample containing a carbon material having a selected structure. Purification methods are provided for removing residual metal catalyst particles enclosed in multilayer carbonaceous impurities in samples generate by catalytic synthesis methods. Purification methods are provided wherein carbonaceous impurities in a sample are at least partially exfoliated, thereby facilitating subsequent removal of carbonaceous and noncarbonaceous impurities from the sample. Methods of purifying carbon nanotube-containing samples are provided wherein an intercalant is added to the sample and subsequently reacted with an exfoliation initiator to achieve exfoliation of carbonaceous impurities.

Inventors:
 [1];  [1];  [2];  [1]
  1. Pasadena, CA
  2. Los Angeles, CA
Publication Date:
Research Org.:
California Institute of Technology (CalTech), Pasadena, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
988045
Patent Number(s):
7,537,682
Application Number:
11/081,841
Assignee:
California Institute of Technology (Pasadena, CA); Centre National de la Recherche Scientifique (Paris, FR)
DOE Contract Number:  
FC36-01GO11090
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Dailly, Anne, Ahn, Channing, Yazami, Rachid, and Fultz, Brent T. Methods for purifying carbon materials. United States: N. p., 2009. Web.
Dailly, Anne, Ahn, Channing, Yazami, Rachid, & Fultz, Brent T. Methods for purifying carbon materials. United States.
Dailly, Anne, Ahn, Channing, Yazami, Rachid, and Fultz, Brent T. Tue . "Methods for purifying carbon materials". United States. https://www.osti.gov/servlets/purl/988045.
@article{osti_988045,
title = {Methods for purifying carbon materials},
author = {Dailly, Anne and Ahn, Channing and Yazami, Rachid and Fultz, Brent T},
abstractNote = {Methods of purifying samples are provided that are capable of removing carbonaceous and noncarbonaceous impurities from a sample containing a carbon material having a selected structure. Purification methods are provided for removing residual metal catalyst particles enclosed in multilayer carbonaceous impurities in samples generate by catalytic synthesis methods. Purification methods are provided wherein carbonaceous impurities in a sample are at least partially exfoliated, thereby facilitating subsequent removal of carbonaceous and noncarbonaceous impurities from the sample. Methods of purifying carbon nanotube-containing samples are provided wherein an intercalant is added to the sample and subsequently reacted with an exfoliation initiator to achieve exfoliation of carbonaceous impurities.},
doi = {},
url = {https://www.osti.gov/biblio/988045}, journal = {},
number = ,
volume = ,
place = {United States},
year = {2009},
month = {5}
}

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