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Microwave‐Induced Controlled Purification of Single‐Walled Carbon Nanotubes without Sidewall Functionalization
Author(s) -
Chen Y.,
Iqbal Z.,
Mitra S.
Publication year - 2007
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.200700440
Subject(s) - thermogravimetric analysis , carbon nanotube , materials science , fourier transform infrared spectroscopy , surface modification , raman spectroscopy , catalysis , atomic absorption spectroscopy , chemical engineering , scanning electron microscope , microwave , impurity , spectroscopy , carbon fibers , infrared spectroscopy , nanotechnology , analytical chemistry (journal) , organic chemistry , composite material , chemistry , optics , physics , quantum mechanics , composite number , engineering
Abstract A microwave‐induced controlled method for the purification of single‐walled carbon nanotubes (SWCNTs) by removing residual metal catalysts and carbonaceous impurities is reported. Compared to conventional strong acid treatment, this one‐step method uses dilute acids and complexing agents and reduces the reaction times to the order of minutes. Furthermore, the SWCNTs retain their chemical and physical properties and are not functionalized. Electron microscopy, Raman spectroscopy, Fourier transform infrared (FTIR) spectroscopy, thermogravimetric analysis (TGA) and atomic absorption (AA) spectrometry studies were used to characterize the purified SWCNTs.