English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/132680
Compartir / Impacto:
Estadísticas
Add this article to your Mendeley library MendeleyBASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Título

Improved power factor of polyaniline nanocomposites with exfoliated graphene nanoplatelets (GNPs)

AutorAbad Mayor, Begoña ; Alda, Irene; Díaz Chao, Pablo ; Kawakami, Hiroshi; Almarza, Albert; Amantia, David; Gutiérrez, David; Aubouy, Laurent; Martín-González, Marisol S.
Fecha de publicación2013
EditorRoyal Society of Chemistry (Great Britain)
CitaciónJournal of Materials Chemistry A 1: 10450-10457 (2013)
ResumenIn this work, exfoliated graphene nanoplatelets (GNPs)/polyaniline (PANI) nanocomposites have been prepared by sequential processing comprising: (i) a first aniline oxidative polymerization step under acidic conditions and (ii) mechanical blending with GNPs at different percentages. Thermoelectric pellets of the hybrid materials have been obtained at suitable circular geometry by means of cold pressing. Thermoelectric parameters have been determined at room temperature (electrical conductivity, Seebeck coefficient and thermal conductivity). Thermoelectric measurements show a drastic enhancement in both electrical conductivity and Seebeck coefficient with the addition of GNPs. A respectable maximum power factor value of 14 μW m-1 K-2 is reached for hybrid materials charged at 50 wt% GNP content, evidencing a 1000-fold enhancement with respect to the raw PANI polymer. The measured thermal conductivity is in the range of 0.5 W m-1 K-1 for pure PANI to 3.3 W m-1 K-1 for 50 wt% GNP content, which matches the parallel thermal resistor model for this nanocomposite. © 2013 The Royal Society of Chemistry.
Versión del editorhttp://dx.doi.org/10.1039/c3ta12105d
URIhttp://hdl.handle.net/10261/132680
DOI10.1039/c3ta12105d
Identificadoresissn: 2050-7488
e-issn: 2050-7496
Aparece en las colecciones: (IMN-CNM) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
accesoRestringido.pdf15,38 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 

Artículos relacionados:


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.