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Dispersion of Reduced Graphene Oxide in Multiple Solvents with an Imidazolium-Modified Hexa-peri-hexabenzocoronene

Authors

  • Hengxing Wei,

    1. Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190 (China), Fax: (+86) 10-8254-3518
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  • Dr. Ying-Ying Li,

    1. Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190 (China), Fax: (+86) 10-8254-3518
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  • Dr. Jinping Chen,

    Corresponding author
    1. Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190 (China), Fax: (+86) 10-8254-3518
    • Jinping Chen, Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190 (China), Fax: (+86) 10-8254-3518

      Guoqiang Yang, Beijing National Laboratory for Molecular Sciences (BNLMS), Key laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190 (China), Fax: (+86) 10-8261-7315

      Yi Li, Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190 (China), Fax: (+86) 10-8254-3518

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  • Dr. Yi Zeng,

    1. Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190 (China), Fax: (+86) 10-8254-3518
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  • Prof. Dr. Guoqiang Yang,

    Corresponding author
    1. Beijing National Laboratory for Molecular Sciences (BNLMS), Key laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190 (China), Fax: (+86) 10-8261-7315
    • Jinping Chen, Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190 (China), Fax: (+86) 10-8254-3518

      Guoqiang Yang, Beijing National Laboratory for Molecular Sciences (BNLMS), Key laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190 (China), Fax: (+86) 10-8261-7315

      Yi Li, Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190 (China), Fax: (+86) 10-8254-3518

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  • Prof. Dr. Yi Li

    Corresponding author
    1. Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190 (China), Fax: (+86) 10-8254-3518
    • Jinping Chen, Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190 (China), Fax: (+86) 10-8254-3518

      Guoqiang Yang, Beijing National Laboratory for Molecular Sciences (BNLMS), Key laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190 (China), Fax: (+86) 10-8261-7315

      Yi Li, Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190 (China), Fax: (+86) 10-8254-3518

    Search for more papers by this author

Abstract

An imidazolium-modified hexa-peri-hexabenzocoronene derivative (HBC-C11-MIM[Cl]) was designed and synthesized as a stabilizer to fabricate reduced graphene oxide (RGO). The resulting RGO/HBC-C11-MIM[Cl] hybrid shows excellent dispersivity (5.0 mg mL−1) and stability in water. RGO/HBC-C11-MIM[Cl] was comprehensively characterized by using atomic force microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, thermogravimetric analysis, and Raman spectroscopy, thus revealing that one HBC-C11-MIM[Cl] group can stabilize about 178 carbon atoms on the graphene sheets. The obtained hybrid film exhibits a high conductivity of 286 S m−1. Furthermore, the HBC-C11-MIM[Cl]-modified RGO sheets can be readily dispersed in polar organic solvents upon exchange of the hydrophilic Cl ions for hydrophobic bis(trifluoromethylsulfonyl) amide (NTf2) ions.

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