The Role of Carboxylated Carbonaceous Fragments in the Functionalization and Spectroscopy of a Single‐Walled Carbon‐Nanotube Material

• DOI: 10.1002/adma.200601310
• Publication Date: 2007-02-13T16:10:20Z
• Authors: C. G. Salzmann; S. A. Llewellyn; G. Tobias; M. A. H. Ward; Y. Huh; M. L. H. Green
• Keywords: Surface Modification; Nitric acid; Carbon fibers; Chemical modification

The majority of carboxylic acid groups formed after treatment a single-walled carbon nanotube (SWCNT) material with nitric are present on carboxylated carbonaceous fragments (CCFs) (see figure). These CCFs removed from the SWCNTs by NaOH solution and identified as carriers COOH functionality, implying that previous reports claiming side-wall functionalization should be reconsidered.