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Título

Poly(N-vinyl carbazole) and carbon nanotubes based composites and their application to rechargeable lithium batteries

AutorBaibarac, Mihaela; Lira-Cantú, Mónica ; Oró Solé, Judith; Baltog, Ioan; Casañ Pastor, Nieves; Gómez-Romero, P.
Palabras claveA. Polymer–matrix composites (PMCs);
A. Nanostructures
D. Transmission electron microscopy (TEM)
D. Infrared (IR) spectroscopy
Fecha de publicaciónsep-2007
EditorElsevier
CitaciónComposites Science and Technology 67 (11-12): 2556-2563
ResumenIn order to prepare poly(N-vinyl carbazole) (PVK) and carbon nanotube (CNs) based composites, electrochemical polymerization of N-vinyl carbazole (NVK) was studied by cyclic voltammetry (CV) in LiClO4/acetonitrile solutions. Cyclic voltammograms recorded on a blank Pt electrode and those obtained when single or multi-walled carbon nanotubes (SWNTs or MWNTs) films were previously deposited onto the Pt electrode show a down-shift of the VK reduction peak potential in the latter case. The influence of monomer concentration and supporting electrolyte on the polymerization conditions and electrochemical properties of these composite materials were also investigated. Morphologic aspects as well as the photoluminescence properties of the PVK/CNs composite were also investigated. A covalent functionalization of carbon nanotubes with PVK is suggested on the basis of infrared (IR) spectroscopic studies. Using the PVK/CN composite as a positive electrode and an electrolytic solution containing LiPF6, a higher specific discharge capacity of the rechargeable lithium cells, 45 and 115 mA h g−1, are reported for PVK functionalized SWNTs and MWNTs, respectively.
Versión del editorhttp://dx.doi.org/10.1016/j.compscitech.2006.12.008
URIhttp://hdl.handle.net/10261/15643
DOI10.1016/j.compscitech.2006.12.008
ISSN0266-3538
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