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Effects of purification on the diameter separation of metallic single‐walled carbon nanotubes by gel column chromatography
Author(s) -
Zhang Jing,
Tan Furui,
Li Hongbo,
Jin Hehua,
Li Qingwen
Publication year - 2012
Publication title -
physica status solidi (rrl) – rapid research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.786
H-Index - 68
eISSN - 1862-6270
pISSN - 1862-6254
DOI - 10.1002/pssr.201206145
Subject(s) - carbon nanotube , materials science , raman spectroscopy , column chromatography , metal , amorphous carbon , carbon fibers , amorphous solid , active carbon , conductivity , chemical engineering , chromatography , nanotechnology , chemistry , composite material , organic chemistry , optics , metallurgy , composite number , physics , engineering , environmental protection , environmental science
Metallic single‐walled carbon nanotubes (m‐SWCNTs) with excellent conductivity and transparency are considered to be eminent electrode materials. However, it still remains a challenge to separate m‐SWCNTs by their diameters. As reported in this Letter, by effective purification treatment of SWCNTs, we succeeded in achieving diameter separation of m‐SWCNTs using gel column chromatography. TEM and Raman characterizations revealed that metal catalysts and amorphous carbon on tube surfaces were largely reduced, which contributed to the diameter separation of m‐SWCNTs.The separation process of m‐SWCNTs by gel column chromatography and their corresponding optical absorption spectra. (© 2012 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)