Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/55191
Title: In-situ synthesis and characterization of electrically conductive polypyrrole/graphene nanocomposites
Authors: Bose, S
Kuila, T
Uddin, ME
Kim,NH
Lau, AKT 
Lee, JH
Keywords: Graphene nanosheets
Nanocomposites
Polypyrrole
Issue Date: 2010
Publisher: Elsevier
Source: Polymer, 2010, v. 51, no. 25, p. 5921-5928 How to cite?
Journal: Polymer (United Kingdom) 
Abstract: Polypyrrole (PPy)/graphene (GR) nanocomposites were successfully prepared via in-situ polymerization of graphite oxide (GO) and pyrrole monomer followed by chemical reduction using hydrazine monohydrate. The large surface area and high aspect ratio of the in-situ generated graphene played an important role in justifying the noticeable improvements in electrical conductivity of the prepared composites via chemical reduction. X-ray photoelectron spectroscopy (XPS) analysis revealed the removal of oxygen functionality from the GO surface after reduction and the bonding structure of the reduced composites were further determined from FTIR and Raman spectroscopic analysis. For PPy/GR composite, intensity ratio between D band and G band was high (~1.17), indicating an increased number of c-sp2 domains that were formed during the reduction process. A reasonable improvement in thermal stability of the reduced composite was also observed. Transmission electron microscopy (TEM) observations indicated the dispersion of the graphene nanosheets within the PPy matrix.
URI: http://hdl.handle.net/10397/55191
ISSN: 0032-3861
EISSN: 1873-2291
DOI: 10.1016/j.polymer.2010.10.014
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