Journal
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS
Volume 246, Issue 11-12, Pages 2490-2493Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/pssb.200982313
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Funding
- Ministry of Education, Culture, Sports, Science and Technology [18710108]
- Industrial Technology Research Grant Program
- New Energy and Industrial Technology Development Organization (NEDO)
- Grants-in-Aid for Scientific Research [18710108] Funding Source: KAKEN
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Metallic and semiconducting single-wall carbon nanotubes (SWCNTs) were separated using agarose gel. When the SWCNTs isolated with sodium dodecyl sulfate (SDS) were embedded in agarose gel, the metallic SWCNTs were eluted from the gel by applying electronic field or mechanical stress, for example, centrifugation etc., and semiconducting SWCNTs remained in the gel. The purities for metallic and semi-conducting SWCNTs were similar to 70% and similar to 95%, respectively. One of the simplest methods was freeze, thaw and squeeze the SWCNTs containing gel. These methods can separate various kinds of SWCNTs. By using centrifugation method, we could separate about 10 mg of SWCNTs with a 500 ml bottle. (C) 2009 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
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