Liquid‐Phase Exfoliation of Nanotubes and Graphene

By Jonathan N. Coleman. 2009

638 citations recorded by the source corpus.

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 all 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.

Subfields: Biomedical Engineering, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/f62ed27e6761419bab2273222e5c4f08412a3dca

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In Biomedical Engineering

1. M. Zhong
2. Meng Zhang
3. E. Tkalya
4. Yizhong Huang
5. M. Ghislandi
6. Bo Zhao
7. Jian Peng
8. Xiaoqing Jiang

In Materials Chemistry

1. Edmund J. R. Kelleher
2. R. I. Woodward
3. F. Torrisi
4. G. Hu
5. R. Howe
6. Meng Zhang
7. Tawfique Hasan
8. M. Zhong

Citations in the corpus

• Determination of ascorbic acid, dopamine, and uric acid by a novel electrochemical sensor based on pristine graphene (2015, methodology): “To date, there are three basic methods to prepare graphene: mechanical cleavage method [1], Hummers method [2], and liquid phase exfoliation method [3,4].”
• The use of surfactants for dispersing carbon nanotubes and graphene to make conductive nanocomposites (2012, background): “This is the electrostatic potential at the edge of the layer of bound tail groups [20,21].”