Manufacture and characterization of conductor-insulator composites based on carbon nanotubes and thermally reduced graphene oxide

Publikationstyp
Conference Paper
Date Issued
2014-05-03
Sprache
English
Author(s)
Bowen, Chris R.  
Buschhorn, Samuel T.  
Adamaki, Vana  
Institut
Kunststoffe und Verbundwerkstoffe M-11  
TORE-URI
http://hdl.handle.net/11420/9950
Journal
Pure and applied chemistry  
Volume
86
Issue
5
Start Page
765
End Page
774
Citation
Pure and Applied Chemistry 86 (5): 765-774 (2014)
Contribution to Conference
9th International Conference on Novel Materials and their Synthesis, NMS-IX 2013  
Publisher DOI
10.1515/pac-2013-1207
Scopus ID
2-s2.0-84900852964
Publisher
de Gruyter
In this paper we present characterization data for carbon nanotube (CNT)-epoxy and thermally reduced graphene oxide (TRGO)-epoxy nano-composites. The frequency-dependent ac conductivity and permittivity are examined as a function of volume fraction of carbon-based filler. The measured electrical properties and their frequency dependency are evaluated on the basis that such composites can be considered as a network of resistors and capacitors, whereby the resistors represent the conductive component (CNT or TRGO) and the capacitors are the insulating component (epoxy matrix). Differences observed between the frequency-dependent electrical properties of the CNT-epoxy and TRGO-epoxy composites are explained in terms of the different electrical conductivities of the CNT and TRGO phase. © 2014 IUPAC & De Gruyter.
Subjects
Carbon nanotubes
Electrical networks
Electrical properties
Graphene oxide
Manufacture
Nanocomposites
NMS-IX
Permittivity
DDC Class
540: Chemie
Funding Organisations
European Research Council
More Funding Information
We acknowledge Prof. Mülhaupt from the University of Freiburg for providing the thermally reduced graphene oxide. Chris Bowen acknowledges funding from the European Research Council under the European Union’s Seventh Framework Programme () / ERC Grant Agreement no. 320963 on Novel Energy Materials, Engineering Science and Integrated Systems (NEMESIS).