Functionalization of Graphene: Covalent and Non-Covalent Approaches, Derivatives and Applications

These results demonstrate that organic functionalization of epitaxial graphene possesses wide tolerance and can be readily achieved at room temperature using surface chemistry analogous to that on bulk graphite

Vasilios Georgakilas; Michal Otyepka; Athanasios B. Bourlinos; Vimlesh Chandra; Namdong Kim; K. Christian Kemp; Pavel Hobza; Radek Zboril; Kwang S. Kim

2012

Scholarcy highlights

  • Graphene, the two-dimensional sp2-hybridized carbon, is currently, without any doubt, the most intensively studied material
  • The initial interest in the so-called “wonder” material has not faded, with a number of potential applications already proposed ranging from water remediation to supercapacitors, DNA-sequencing, photocatalysts, and oxygen reduction reaction catalysts
  • One just has to consider the structure of graphene oxide to realize that there are multiple manipulations that can be chemically achieved, if only we understood the structure fully. This review provides insight into the various ways to functionalize graphene and graphene derivatives, thereby expanding the number of potential applications for graphene-based materials
  • The functionalization modes can be classified according to the method and materials used and as such have been categorized as covalent functionalization, noncovalent functionalization, substitutional doping of graphene, and hybridization with nanoparticles, nanowires, and other materials
  • These various methods of functionalization offer various ways to expand on the current uses of graphene, that is, bioimaging or band gap opening, which can be used in electronics
  • The SnO2-G composite has near monodispersion of the SnO2 nanocrystals as well as a high SnO2 content of over 60%
  • We report a novel reducing agent system) that allows for an efficient, one-pot reduction of a solution-phased Reduced graphene oxides powder and vapour-phased RG-O paper and thin film

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