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Study of the electrical properties of rGO obtained by different GO reduction methods
Miranda L.F.; Gomes P.V.C.; de Almeida F.J.M.; Andrade e Silva L.G.; Munhoz Junior A.H.; Masson T.J. (2019)
© The Minerals, Metals & Materials Society 2019. This work aimed at the synthesis of graphene oxide (GO) and its reduction in reduced graphene oxide (rGO), as well as the characterization of the obtained GO and of each of the products of the various GO reduction methods. The characteristics of the GO and rGO samples were compared in order to study the results for each reduction method. Graphene oxide was synthesized, from the modified Hummers methodology, using powdered graphite and subsequently reduced to rGO by different methods (chemical method: Reduction with hydrazine and carbon–C-dots nanoparticles, and physical: Ultrasound). The samples obtained from graphene oxide and reduced graphene oxide were characterized electrically and microstructurally. The results showed that the samples of GO reduced with hydrazine were those that obtained the best results of conductivity and good restructuring of the sp 2 hybridization, followed by the carbon nanoparticles and ultrasound.