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A "Tandem" Strategy to Fabricate Flexible Graphene/Polypyrrole Nanofiber Film Using the Surfactant-Exfoliated Graphene for Supercapacitors

Journal Article


Abstract


  • The surfactant-assisted liquid-phase exfoliation

    of expanded graphite can produce graphene sheets in large

    quantities with minimal defects. However, it is difficult to

    completely remove the surfactant from the final product, thus

    affecting the electrochemical properties of the produced

    graphene. In this article, a novel approach to fabricate flexible

    graphene/polypyrrole film was developed: using surfactant

    cetyltrimethylammonium bromide as a template for growth of

    polypyrrole nanofibers (PPyNFs) instead of removal after the

    exfoliation process; followed by a simple filtration method.

    The introduction of PPyNF not only increases the electrochemical

    performance, but also ensures flexibility. This

    composite film electrode offers a capacitance up to 161 F

    g−1 along with a capacitance retention rate of over 80% after 5000 cycles

Publication Date


  • 2018

Citation


  • Shu, K., Chao, Y., Chou, S., Wang, C., Zheng, T., Gambhir, S. & Wallace, G. G. (2018). A "Tandem" Strategy to Fabricate Flexible Graphene/Polypyrrole Nanofiber Film Using the Surfactant-Exfoliated Graphene for Supercapacitors. ACS Applied Materials and Interfaces, 10 (26), 22031-22041.

Scopus Eid


  • 2-s2.0-85048482433

Number Of Pages


  • 10

Start Page


  • 22031

End Page


  • 22041

Volume


  • 10

Issue


  • 26

Place Of Publication


  • United States

Abstract


  • The surfactant-assisted liquid-phase exfoliation

    of expanded graphite can produce graphene sheets in large

    quantities with minimal defects. However, it is difficult to

    completely remove the surfactant from the final product, thus

    affecting the electrochemical properties of the produced

    graphene. In this article, a novel approach to fabricate flexible

    graphene/polypyrrole film was developed: using surfactant

    cetyltrimethylammonium bromide as a template for growth of

    polypyrrole nanofibers (PPyNFs) instead of removal after the

    exfoliation process; followed by a simple filtration method.

    The introduction of PPyNF not only increases the electrochemical

    performance, but also ensures flexibility. This

    composite film electrode offers a capacitance up to 161 F

    g−1 along with a capacitance retention rate of over 80% after 5000 cycles

Publication Date


  • 2018

Citation


  • Shu, K., Chao, Y., Chou, S., Wang, C., Zheng, T., Gambhir, S. & Wallace, G. G. (2018). A "Tandem" Strategy to Fabricate Flexible Graphene/Polypyrrole Nanofiber Film Using the Surfactant-Exfoliated Graphene for Supercapacitors. ACS Applied Materials and Interfaces, 10 (26), 22031-22041.

Scopus Eid


  • 2-s2.0-85048482433

Number Of Pages


  • 10

Start Page


  • 22031

End Page


  • 22041

Volume


  • 10

Issue


  • 26

Place Of Publication


  • United States