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Sorting single‐wall carbon nanotubes combining gel chromatography and density‐gradient ultracentrifugation
Author(s) -
Nishide Daisuke,
Liu Huaping,
Tanaka Takeshi,
Kataura Hiromichi
Publication year - 2010
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.201000423
Subject(s) - carbon nanotube , materials science , sorting , centrifugation , chromatography , impurity , metal , nanotechnology , chemical engineering , chemistry , organic chemistry , metallurgy , computer science , engineering , programming language
High level structure sorting and metal/semiconductor separation of single‐wall carbon nanotubes (SWCNTs) was demonstrated by combining two separation techniques, gel chromatography and density gradient ultra‐centrifugation (DGU). Pristine SWCNTs were firstly separated into metallic and semiconducting parts by a gel column chromatography. Then a structure sorting of semiconducting SWCNTs was done by DGU method. Finally, highly (6,5) enriched semiconducting SWCNTs were obtained. Structure sorted SWCNTs obtained by this method were free from metallic SWCNT impurities, which cannot be achieved by simple DGU method.