Noncovalent Functionalization of Graphene in Suspension

نویسندگان

  • Wenzhi Yang
  • Sultan Akhtar
  • Klaus Leifer
  • Helena Grennberg
چکیده

Suspensions of graphene, prepared from graphite foil by sonochemical exfoliation, have been treated with new nonpolar pyrenebutyric amides. The assemblies, in suspension and after deposition on solid supports, were characterized by NMR, absorption, and fluorescence spectroscopy and by transmission electron microscopy, where the well-defined shape and size of an appended [60]fulleropyrrolidine unit facilitates TEM detection of the nonstationary molecules. The accumulated evidence, also including direct comparisons of carbon nanotubes treated with pyrene amides under the same conditions, proves the successful noncovalent functionalization of graphene suspended in non-polar solvent with non-polar pyrene derivatives.

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عنوان ژورنال:

دوره 2013  شماره 

صفحات  -

تاریخ انتشار 2013