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Electrochemistry: An Efficient Way to Chemically Modify Individual Monolayers of Graphene

Authors

  • Lin Gan,

    1. Center for Nanochemistry, Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China, Fax: (+86) 10-62757789
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  • Dayong Zhang,

    1. Center for Nanochemistry, Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China, Fax: (+86) 10-62757789
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  • Xuefeng Guo

    Corresponding author
    1. Center for Nanochemistry, Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China, Fax: (+86) 10-62757789
    2. Department of Advanced Materials and Nanotechnology College of Engineering, Peking University, Beijing 100871, P. R. China
    • Center for Nanochemistry, Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China, Fax: (+86) 10-62757789.
    Search for more papers by this author

Abstract

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Fast and efficient surface functionalization of graphene is achieved by the electrochemical formation of aryl radicals from diazonium salts under mild conditions. Precise control of the ratio of electron-deficient nitro groups to electron-rich amino groups is also demostrated, potentially resulting in the controllable tuning of the electrical properties of graphenes.

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