Direct exfoliation of graphite to graphene in aqueous media with diazaperopyrenium dications

Srinivasan Sampath, Ashish N. Basuray, Karel J. Hartlieb, Taner Aytun, Samuel I. Stupp, J. Fraser Stoddart

Research output: Contribution to journalArticle

63 Citations (Scopus)


The 2,9-dimethyldiazaperopyrenium dication can be made from a ubiquitous and inexpensive feedstock in three simple steps as its chloride salt. When mixed with powdered graphite at 23 °C, this behemoth of a molecular compound exfoliates graphite to graphene in water under mild conditions.

Original languageEnglish
Pages (from-to)2740-2745
Number of pages6
JournalAdvanced Materials
Issue number19
Publication statusPublished - May 21 2013



  • composites
  • diazaperopyrenium dications
  • exfoliation
  • graphene
  • graphite

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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