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      Facile synthesis of silver-decorated reduced graphene oxide as a hybrid filler material for electrically conductive polymer composites

      1 , 2 , 3 , 1 , 2 , 3
      RSC Advances
      Royal Society of Chemistry (RSC)

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          Abstract

          Nano silver-decorated reduced graphene oxide (Ag–RGO) sheets were synthesized by simply dissolving graphite oxide and silver nitrate in N, N-dimethylformamide and keeping the suspension at 90 °C for 12 h.

          Abstract

          Nano silver-decorated reduced graphene oxide (Ag–RGO) sheets were synthesized by simply dissolving graphite oxide and silver nitrate in N, N-dimethylformamide and keeping the suspension at 90 °C for 12 h. These highly stable hybrid sheets were then incorporated into a polar polymer, polyvinylidene fluoride (PVDF), to prepare the Ag–RGO/PVDF nanocomposites via solution mixing. The Ag–RGO hybrid sheets were dispersed homogeneously in the polymer matrix, resulting in a low percolation threshold of 0.17 vol%. Above the percolation threshold, electrical conductivity of the Ag–RGO/PVDF composite system was about one order of magnitude higher than that of thermally reduced graphene/PVDF composites. This was attributed to the high intrinsic electrical conductivity of silver. The improved electrical properties render this novel composite system an attractive material for antistatic, electrostatic dissipative and electromagnetic/radio frequency interference shielding applications. Furthermore, the resistivity of the composite system increased with increasing temperature, generating a pronounced positive temperature coefficient effect of resistivity.

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          Most cited references47

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          A new structural model for graphite oxide

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            Physics of inhomogeneous inorganic materials

            Ce-Wen Nan (1993)
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              Study of oxygen-containing groups in a series of graphite oxides: Physical and chemical characterization

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                Author and article information

                Journal
                RSCACL
                RSC Advances
                RSC Adv.
                Royal Society of Chemistry (RSC)
                2046-2069
                2015
                2015
                : 5
                : 20
                : 15070-15076
                Affiliations
                [1 ]Department of Physics and Materials Science
                [2 ]City University of Hong Kong
                [3 ]Hong Kong
                Article
                10.1039/C5RA00257E
                ac42104c-a057-4881-83e3-503595e64b5d
                © 2015
                History

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