Facile and Effective Functionalization of Graphene Oxide by Boron–Oxygen Covalent or Bingel Cyclopropanation Reaction
Functionalized graphene oxide (GO-BPh2), was obtained via one step reaction between triphenyl boron and oxygen-containing groups on graphene sheets. In addition, functionalized grapheme oxide (GO-Carbene) was obtained via bingel cyclopropanation reaction of active double bands on graphene sheets. Both functionalized materials can be homogeneously distributed into orthodichlorobenene. They were characterized by FTIR spectroscopy, UV Vis NIR spectroscopy, thermal gravimetric analysis, raman spectra, and X-ray photoelectron spectroscopy (XPS). FTIR, TGA and XPS results prove that phenyl boron has been successfully attached to the graphene sheets by covalent bonds. And the Raman spectra and XPS confirm that many carbon double bands changed into carbon single bands on graphene sheets after cyclopropanation reaction.
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Document Type: Research Article
Publication date: March 1, 2015
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