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Molecular Assembly of Multi-Wall Carbon Nanotubes with Amino Crown Ether: Synthesis and Characterization
Date
2011-06-01
Author
Camarena, J. P.
Espinoza-Gomez, H.
SOMANATHAN, R
Tiznado, H.
Velez-Lopez, E.
Romero-Rivera, R.
Martinez-Lopez, M. A.
Avalos-Borja, M.
Bek, Alpan
Alonso-Nunez, G.
Rogel-Hernandez, E.
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Synthetic methodology and physicochemical characterization of multi-wall carbon nanotubes (MWCNTs) functionalized with a crown ether molecule is reported. The MWCNTs were synthesized by spray pyrolysis technique using toluene as carbon source and ferrocene as catalyst. The nanotubes were characterized by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Oxidation of MWCNTs was carried out by 8 h of sonication in a mixture of sulfuric and nitric acid (3:1). The MWCNT-COOH was amidated with 4-aminobenzo-15-crown-5 under mild reaction conditions using N,N'-dicyclohexylcarbodiimide and dimethylaminopyridine as catalyst and dimethylformamide as solvent, at room temperature for 24 h. The amidation product was characterized by scanning electron microscopy, infrared spectroscopy, X-ray photoelectron spectroscopy, atomic force microscopy and a mass spectrometry study to determine the fragmentation pattern being m/z 309, 177 and 149 the most important ions.
URI
https://hdl.handle.net/11511/37266
Journal
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
DOI
https://doi.org/10.1166/jnn.2011.3430
Collections
Department of Physics, Article