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Liquid-Phase Exfoliation of Nanotubes and Graphene

机译:纳米管和石墨烯的液相剥离

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摘要

Many applications of carbon nanotubes require the exfoliation of the nanotubes to give individual tubes in the liquid phase. This requires the dispersion, exfoliation, and stabilization of nanotubes in a variety of liquids. In this paper recent work in this area is reviewed, focusing on results from the author's group. It begins by reviewing stabilization mechanisms before exploring research into the exfoliation of nanotubes in solvents, by using surfactants or biomolecules and by covalent attachment of molecules. The concentration dependence of the degree of exfoliation in each case will be highlighted. In addition research into the dispersion mechanism for each dispersant type is discussed. Most importantly, dispersion quality metrics for ail dispersants are compared. From this analysis, it is concluded that functionalized nanotubes can be exfoliated to the greatest degree. Finally, the extension of this work to the liquid phase exfoliation of graphite to give graphene is reviewed.
机译:碳纳米管的许多应用都需要剥离纳米管,以使液相中的单个管子脱落。这需要纳米管在各种液体中的分散,剥落和稳定化。本文对这一领域的最新工作进行了回顾,重点是作者小组的研究结果。它首先回顾了稳定机制,然后通过使用表面活性剂或生物分子以及分子的共价键合来研究对纳米管在溶剂中的剥离的研究。每种情况下的去角质程度都取决于浓度。此外,还讨论了每种分散剂类型的分散机理的研究。最重要的是,比较了所有分散剂的分散质量指标。从该分析可以得出结论,可以最大程度地剥离功能化的纳米管。最后,综述了这项工作在石墨的液相剥离中得到石墨烯的范围。

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  • 来源
    《Advanced Functional Materials》 |2009年第23期|3680-3695|共16页
  • 作者

    Jonathan N. Coleman;

  • 作者单位

    School of Physics and CRANN Trinity College Dublin Dublin 2 (Ireland);

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  • 原文格式 PDF
  • 正文语种 eng
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