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The Role of Carboxylated Carbonaceous Fragments in the Functionalization and Spectroscopy of a Single‐Walled Carbon‐Nanotube Material
Author(s) -
Salzmann C. G.,
Llewellyn S. A.,
Tobias G.,
Ward M. A. H.,
Huh Y.,
Green M. L. H.
Publication year - 2007
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.200601310
Subject(s) - surface modification , carbon nanotube , materials science , nitric acid , nanotube , nanotechnology , carbon fibers , chemical engineering , chemical modification , organic chemistry , polymer chemistry , composite material , chemistry , composite number , engineering , metallurgy
The majority of carboxylic acid groups formed after treatment of a single‐walled carbon nanotube (SWCNT) material with nitric acid are present on carboxylated carbonaceous fragments (CCFs) (see figure). These CCFs are removed from the SWCNTs by treatment with NaOH solution and identified as carriers of the COOH functionality, implying that previous reports claiming side‐wall functionalization of the SWCNTs with COOH groups should be reconsidered.