English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/132680
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE
Exportar a otros formatos:


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

AuthorsAbad Mayor, Begoña ; Alda, Irene; Díaz Chao, Pablo ; Kawakami, Hiroshi; Almarza, Albert; Amantia, David; Gutiérrez, David; Aubouy, Laurent; Martín-González, Marisol
Issue Date2013
PublisherRoyal Society of Chemistry (UK)
CitationJournal of Materials Chemistry A 1: 10450-10457 (2013)
AbstractIn 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.
Publisher version (URL)http://dx.doi.org/10.1039/c3ta12105d
Identifiersissn: 2050-7488
e-issn: 2050-7496
Appears in Collections:(IMN-CNM) Artículos
Files in This Item:
File Description SizeFormat 
accesoRestringido.pdf15,38 kBAdobe PDFThumbnail
Show full item record
Review this work

Related articles:

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.