Stable aqueous suspension and self-assembly of graphite nanoplatelets coated with various polyelectrolytes

Jue Lu, Inhwan Do, Hiroyuki Fukushima, Ilsoon Lee, Lawrence T. Drzal

    Research output: Contribution to journalArticle

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    Abstract

    Exfoliated graphite nanoplatelets (xGnPs) with an average thickness of 110nm present an inexpensive alternative to carbon nanotubes in many applications. In this paper, stable aqueous suspension of xGnP was achieved by noncovalent functionalization of xGnP with polyelectrolytes. The surfactants and polyelectrolytes were compared with respect to their ability to suspend graphite nanoplatelets. The surface charge of the nanoplatelets was characterized with zeta potential measurements, and the bonding strength of the polymer chains to the surface of xGnP was characterized with Raman spectroscopy. This robust method opens up the possibility of using this inexpensive nanomaterial in many applications, including electrochemical devices, and leads to simple processing techniques such as layer-by-layer deposition. Therefore, the formation of xGnP conductive coatings using layer-by-layer deposition was also demonstrated.

    Original languageEnglish (US)
    Article number186486
    JournalJournal of Nanomaterials
    Volume2010
    DOIs
    StatePublished - 2010

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    Polyelectrolytes
    Graphite
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    Edema Disease of Swine
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    Surgical Hemostasis
    Experimental Liver Cirrhoses
    Acetabularia
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    Nanostructured materials
    Self assembly
    Raman spectroscopy
    Carbon nanotubes
    Surface active agents

    ASJC Scopus subject areas

    • Materials Science(all)

    Cite this

    Stable aqueous suspension and self-assembly of graphite nanoplatelets coated with various polyelectrolytes. / Lu, Jue; Do, Inhwan; Fukushima, Hiroyuki; Lee, Ilsoon; Drzal, Lawrence T.

    In: Journal of Nanomaterials, Vol. 2010, 186486, 2010.

    Research output: Contribution to journalArticle

    Lu, Jue; Do, Inhwan; Fukushima, Hiroyuki; Lee, Ilsoon; Drzal, Lawrence T. / Stable aqueous suspension and self-assembly of graphite nanoplatelets coated with various polyelectrolytes.

    In: Journal of Nanomaterials, Vol. 2010, 186486, 2010.

    Research output: Contribution to journalArticle

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