Chemoselective photodeoxidization of graphene oxide using sterically hindered amines as catalyst: synthesis and applications

ACS Nano. 2012 Apr 24;6(4):3027-33. doi: 10.1021/nn2047185. Epub 2012 Mar 22.

Abstract

We report a green and efficient method for chemoselective deoxidization of graphene oxide via the ultraviolet irradiation catalyzed with 2,2,6,6-tetramethyl-4-piperidinol. While the sp(2)-hybridized oxygen functional groups are removed after the reduction, the epoxy and hydroxyl groups are retained in the chemoselectively reduced graphene oxide (CrGO). The obtained CrGO nanosheets exhibit the high solubility and excellent electronic stability, which allows for the fabrication of thin film devices through a solution processing. As a proof of concept, a CrGO-based write-once-read-many-times memory device with the desirable stability and long-time operation is fabricated.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Amines / chemistry*
  • Catalysis
  • Chemistry Techniques, Synthetic / methods*
  • Graphite / chemistry*
  • Green Chemistry Technology / methods*
  • Models, Molecular
  • Molecular Conformation
  • Oxidation-Reduction
  • Oxides / chemical synthesis*
  • Oxides / chemistry*
  • Photochemical Processes*
  • Piperidines / chemistry
  • Solvents / chemistry
  • Substrate Specificity

Substances

  • Amines
  • Oxides
  • Piperidines
  • Solvents
  • Graphite