Journal
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS
Volume 247, Issue 11-12, Pages 2867-2870Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/pssb.201000368
Keywords
agarose; carbon nanotube; gel; separation
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Metallic and semiconducting single-wall carbon nanotubes (SWCNTs) were separated by selective adsorption and desorption using agarose gel beads and SWCNTs/sodium dodecyl sulfate dispersion. Comparison to the batch method, the purities of metallic and semiconducting SWCNTs obtained by a column method were improved to 90 and 95%, respectively. When linear-gradient elution was applied to the column method, semiconducting SWCNTs and presumed mixed bundles could be separated into early- and late-eluted fractions, respectively. In the semiconducting fractions, chirality separation was also detected. (C) 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
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