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A high concentration graphene dispersion stabilized by polyaniline nanofibers

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32 Scopus citations

Abstract

By introducing polyaniline nanofibers (PaniNFs) as a stabilizer during the conversion of graphene oxide to graphene in an aqueous medium under ultrasound, the aggregation of the intermediates and products was effectively suppressed. A stable dispersion of PaniNFs and graphene (G) with a high concentration was obtained. This method represents a convenient and potential route to prepare a PaniNF-G dispersion on a large scale, which may increase the applications of graphene. Vacuum filtration of the dispersion yields a high-quality self-supporting PaniNF/G composite film, whose electrical conductivity can be increased by rinsing with hydrochloric acid.

Original languageEnglish
Pages (from-to)1107-1113
Number of pages7
JournalSynthetic Metals
Volume162
Issue number13-14
DOIs
StatePublished - Aug 2012

Keywords

  • Composite film
  • Graphene
  • High electrical conductivity
  • Polyaniline nanofiber
  • Ultrasonic irradiation

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