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Bergeret, C., Cousseau, J., Fernandez, V., Mevellec, J.-Y. & Lefrant, S. (2008) Spectroscopic Evidence of Carbon Nanotubes' Metallic Character Loss Induced by Covalent Functionalization via Nitric Acid Purification. J. Phys. Chem. C, 112 16411–16416.
Added by: Laurent Cournède (2016-03-10 21:58:41) |
| Type de référence: Article DOI: 10.1021/jp806602t Numéro d'identification (ISBN etc.): 1932-7447 Clé BibTeX: Bergeret2008 Voir tous les détails bibliographiques  |
Catégories: PMN Mots-clés: chemistry, Diazonium salts, electronic-properties, raman-scattering, reoxidation, selective oxidation, separation, sidewall functionalization, single, solid-state Créateurs: Bergeret, Cousseau, Fernandez, Lefrant, Mevellec Collection: J. Phys. Chem. C |
Consultations : 1/1021
Indice de consultation : 7% Indice de popularité : 1.75% |
| Résumé |
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A detailed characterization of covalently functionalized HiPco single-walled carbon nanotubes (SWNTs) has been carried out using several physicochemical methods (thermogravimetric analysis, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy and Raman scattering). The chemical process, finally leading to SWNT-ester derivatives, starts from nitric acid purification of pristine SWNTs. Besides the efficiency of the functionalization, we show that a loss of metallic character of the carbon nanotubes is initiated by the nitric acid treatment of pristine SWNTs and is maintained in the final SWNT ester derivatives. A higher reactivity of the metallic tubes is also demonstrated.
Added by: Laurent Cournède |