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Length Fractionation of Carbon Nanotubes Using Centrifugation
Author(s) -
Fagan Jeffrey A.,
Becker Matthew L.,
Chun Jaehun,
Hobbie Erik K.
Publication year - 2008
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200702353
Subject(s) - carbon nanotube , materials science , ultracentrifuge , chirality (physics) , centrifugation , nanotechnology , transient (computer programming) , centripetal force , density gradient , carbon fibers , chemical physics , chemical engineering , chromatography , composite material , mechanics , chemistry , physics , chiral symmetry breaking , quark , computer science , nambu–jona lasinio model , engineering , operating system , composite number , quantum mechanics
Scalable separation of single‐walled carbon nanotubes (SWCNTs)by length and chirality is critical to the adaptation of these materials for applications. Ultracentrifugation of SWCNTs within a density gradient produces chiral separation of the NTs, and it is shown here that ultracentrifugation can also be used to produce length fractionated SWCNTs by exploiting their transient motion in response to applied centripetal acceleration.