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Ball‐Milling Modification of Single‐Walled Carbon Nanotubes: Purification, Cutting, and Functionalization
Author(s) -
Rubio Noelia,
Fabbro Chiara,
Herrero M. Antonia,
de la Hoz Antonio,
Meneghetti Moreno,
Fierro Jose L. G.,
Prato Maurizio,
Vázquez Ester
Publication year - 2011
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201001917
Subject(s) - surface modification , materials science , carbon nanotube , ball mill , oxidizing agent , raman spectroscopy , homogeneous , mechanochemistry , nanotechnology , chemical engineering , composite material , organic chemistry , chemistry , physics , optics , engineering , thermodynamics
Single‐walled carbon nanotubes (SWNTs) can be successfully cut with relatively homogeneous sizes using a planetary mill. The optimized conditions produce highly dispersible SWNTs that can be efficiently functionalized in a variety of synthetic ways. As clearly shown by Raman spectroscopy, the milling/cutting procedure compares very favorably with the most common way of purifying SWNTs, namely, treatment with strong oxidizing acids. Moreover a similar milling process can be used to functionalize and cut pristine SWNTs by one‐step nitrene chemistry.