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Polypyrrole/graphene composite films synthesized via potentiostatic deposition


Lim, Yee Seng and Tan, Yen Ping and Lim, Hong Ngee and Tan, Wee Tee and Abdi, Mahnaz M. and Talib, Zainal Abidin and Huang, Nay Ming and Kassim, Anuar and Yarmo, Mohd Ambar (2013) Polypyrrole/graphene composite films synthesized via potentiostatic deposition. Journal of Applied Polymer Science, 128 (1). pp. 224-229. ISSN 0021-8995; ESSN: 1097-4628


A one-step electrochemical process has been employed to synthesize composite films of polypyrrole/graphene (PPy/GR) by electrochemical polymerization on indium tin oxide (ITO) from an aqueous solution containing pyrrole monomer, graphene oxide (GO) nanosheets and sodium p-toluenesulfonate (NapTS). Thermogravimetric analysis (TGA) confirmed the formation of a composite; the degradation temperature of the new hybrid was between those of PPy and GO. Moreover, the bulbous surface of PPy and the almost transparent tissue-like GO nanosheets were replaced by the new appearance of the composite where the surface was flat but creased. As GO is nonconductive, we deduced that it had been reduced to conducting graphene in the composite film during the electrodeposition process, based on an electrical conductivity study measured with a four-point probe. On average, the electrical conductivity of the PPy/GR composites was twofold higher than that of the pure PPy film, indicating that the incorporation of graphene was able to enhance the conductivity of PPy film.

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Additional Metadata

Item Type: Article
Divisions: Centre of Excellence for Catalysis Science and Technology
Faculty of Science
Institute of Tropical Forestry and Forest Products
DOI Number: https://doi.org/10.1002/app.38174
Publisher: Wiley Periodicals
Keywords: Conducting polymers; Graphene; Electrochemistry; Composite
Depositing User: Umikalthom Abdullah
Date Deposited: 29 May 2014 06:44
Last Modified: 29 Nov 2016 07:39
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1002/app.38174
URI: http://psasir.upm.edu.my/id/eprint/29980
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