Kinetics of diazonium functionalization of chemically converted graphene nanoribbons

Alexander Sinitskii, Ayrat Dimiev, David A. Corley, Alexandra A. Fursina, Dmitry V. Kosynkin, James M. Tour

Research output: Contribution to journalArticle

214 Scopus citations

Abstract

We demonstrate that graphene nanoribbons (GNRs) produced by the oxidative unzipping of carbon nanotubes can be chemically functionalized by diazonium salts. We show that functional groups form a thin layer on a GNR and modify its electrical properties. The kinetics of the functionalization can be monitored by probing the electrical properties of GNRs, either in vacuum after the grafting, or in situ in the solution. We derive a simple kinetics model that describes the change in the electrical properties of GNRs. The reaction of GNRs with 4-nitrobenzene diazonium tetrafluoroborate is reasonably fast, such that >60% of the maximum change in the electrical properties is observed after less than 5 min of grafting at room temperature.

Original languageEnglish (US)
Pages (from-to)1949-1954
Number of pages6
JournalACS Nano
Volume4
Issue number4
DOIs
StatePublished - Apr 27 2010

Keywords

  • Diazonium chemistry
  • Functionalization
  • Graphene
  • Graphene nanoribbons
  • Kinetics

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)
  • Physics and Astronomy(all)

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    Sinitskii, A., Dimiev, A., Corley, D. A., Fursina, A. A., Kosynkin, D. V., & Tour, J. M. (2010). Kinetics of diazonium functionalization of chemically converted graphene nanoribbons. ACS Nano, 4(4), 1949-1954. https://doi.org/10.1021/nn901899j