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Direct Exfoliation of Graphite to Graphene in Aqueous Media with Diazaperopyrenium Dications

Authors

  • Srinivasan Sampath,

    1. Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208, USA
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  • Ashish N. Basuray,

    1. Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208, USA
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  • Karel J. Hartlieb,

    1. Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208, USA
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  • Taner Aytun,

    1. Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, USA
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  • Samuel I. Stupp,

    Corresponding author
    1. Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208, USA
    2. Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, USA
    3. Department of Medicine, Northwestern University, Chicago, Illinois 60611, USA, Institute for BioNanotechnology in Medicine, Northwestern University, Chicago, Illinois 60611, USA
    • Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208, USA.
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  • J. Fraser Stoddart

    Corresponding author
    1. Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208, USA
    • Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208, USA.
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Abstract

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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.

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