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Baibarac, M., Baltog, I., Scocioreanu, M., Lefrant, S. & Mevellec, J. Y. (2009) Vibrational properties of the electrochemically synthesized polyindole/single-walled carbon nanotubes composite. Synth. Met. 159 2550–2555.
Added by: Laurent Cournède (2016-03-10 21:41:22) |
| Type de référence: Article DOI: 10.1016/j.synthmet.2009.09.010 Numéro d'identification (ISBN etc.): 0379-6779 Clé BibTeX: Baibarac2009 Voir tous les détails bibliographiques  |
Catégories: PMN Mots-clés: carbon nanotubes, indole, polymer, polymerization, polypyrrole, raman, Raman spectroscopy Créateurs: Baibarac, Baltog, Lefrant, Mevellec, Scocioreanu Collection: Synth. Met. |
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Electrochemical polymerization of indole in a LiClO(4)/CH(3)CN solution on a single-walled carbon nanotubes (SWNTs) film was studied by cyclic voltammetry, Raman scattering and FTIR spectroscopy. Comparing the cyclic voltammograms recorded on a blank Pt electrode with those obtained when carbon nanotubes films were previously deposited onto the Pt electrode, a down-shift of the indole reduction peak potential in the latter case was observed. Raman spectroscopy studies indicate that the electrochemical deposition of polyindole (PIN) onto the SWNT film results in a breaking of SWNT bundles into individual tubes. A covalent functionalization of SWNTs with PIN in the doped state is demonstrated by FTIR spectroscopy, when an increase in the intensity of the absorption band at 1045 cm(-1) is observed. Besides, Raman and FTIR studies performed on samples electrochemically prepared and thereafter post-chemically reacted with an NH(4)OH solution, indicate both a roping process of individual tubes with PIN as a binding agent and a strong steric hindrance effect. (C) 2009 Elsevier B.V. All rights reserved.
Added by: Laurent Cournède |