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In this work, a stable aqueous dispersion solution of polymer-modified graphene was prepared by in situ reduction with ethylene glycol from graphene nanosheets (GNs) in the presence of poly (diallyldimethylammonium chloride) (PDDA), in order to obtain a (PtNPs–GNs–PDDA) nanocomposite material, where Pt nanoparticles (PtNPs) with a narrow size distribution of 2–4nm uniformly decorates GNs, being both...
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