Polypyrrole/graphene composite films synthesized via potentiostatic deposition

Y. S. Lim, Y. P. Tan, H. N. Lim, W. T. Tan, M. A. Mahnaz, Z. A. Talib, N. M. Huang, A. Kassim, Mohd. Ambar Yarmo

Research output: Contribution to journalArticle

46 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)224-229
Number of pages6
JournalJournal of Applied Polymer Science
Volume128
Issue number1
DOIs
Publication statusPublished - 5 Apr 2013

Fingerprint

Graphite
Polypyrroles
Composite films
Graphene
Oxides
Nanosheets
Composite materials
Pyrroles
Electropolymerization
polypyrrole
Tin oxides
Electrodeposition
Indium
Thermogravimetric analysis
Monomers
Sodium
Tissue
Degradation

Keywords

  • composite
  • conducting polymers
  • electrochemistry
  • graphene

ASJC Scopus subject areas

  • Materials Chemistry
  • Polymers and Plastics
  • Surfaces, Coatings and Films
  • Chemistry(all)

Cite this

Polypyrrole/graphene composite films synthesized via potentiostatic deposition. / Lim, Y. S.; Tan, Y. P.; Lim, H. N.; Tan, W. T.; Mahnaz, M. A.; Talib, Z. A.; Huang, N. M.; Kassim, A.; Yarmo, Mohd. Ambar.

In: Journal of Applied Polymer Science, Vol. 128, No. 1, 05.04.2013, p. 224-229.

Research output: Contribution to journalArticle

Lim, YS, Tan, YP, Lim, HN, Tan, WT, Mahnaz, MA, Talib, ZA, Huang, NM, Kassim, A & Yarmo, MA 2013, 'Polypyrrole/graphene composite films synthesized via potentiostatic deposition', Journal of Applied Polymer Science, vol. 128, no. 1, pp. 224-229. https://doi.org/10.1002/app.38174
Lim, Y. S. ; Tan, Y. P. ; Lim, H. N. ; Tan, W. T. ; Mahnaz, M. A. ; Talib, Z. A. ; Huang, N. M. ; Kassim, A. ; Yarmo, Mohd. Ambar. / Polypyrrole/graphene composite films synthesized via potentiostatic deposition. In: Journal of Applied Polymer Science. 2013 ; Vol. 128, No. 1. pp. 224-229.
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