Liquid exfoliation of layered materials

Valeria Nicolosi, Manish Chhowalla, Mercouri G Kanatzidis, Michael S. Strano, Jonathan N. Coleman

Research output: Contribution to journalArticle

1384 Citations (Scopus)

Abstract

Not all crystals form atomic bonds in three dimensions. Layered crystals, for instance, are those that form strong chemical bonds in-plane but display weak out-of-plane bonding. This allows them to be exfoliated into so-called nanosheets, which can be micrometers wide but less than a nanometer thick. Such exfoliation leads to materials with extraordinary values of crystal surface area, in excess of 1000 square meters per gram. This can result in dramatically enhanced surface activity, leading to important applications, such as electrodes in supercapacitors or batteries. Another result of exfoliation is quantum confinement of electrons in two dimensions, transforming the electron band structure to yield new types of electronic and magnetic materials. Exfoliated materials also have a range of applications in composites as molecularly thin barriers or as reinforcing or conductive fillers. Here, we review exfoliation - especially in the liquid phase - as a transformative process in material science, yielding new and exotic materials, which are radically different from their bulk, layered counterparts.

Original languageEnglish
Article number1226419
JournalScience
Volume340
Issue number6139
DOIs
Publication statusPublished - 2013

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electrochemical capacitors
materials science
liquids
chemical bonds
magnetic materials
fillers
crystal surfaces
crystals
electric batteries
micrometers
liquid phases
electrons
composite materials
electrodes
electronics

ASJC Scopus subject areas

  • General

Cite this

Nicolosi, V., Chhowalla, M., Kanatzidis, M. G., Strano, M. S., & Coleman, J. N. (2013). Liquid exfoliation of layered materials. Science, 340(6139), [1226419]. https://doi.org/10.1126/science.1226419

Liquid exfoliation of layered materials. / Nicolosi, Valeria; Chhowalla, Manish; Kanatzidis, Mercouri G; Strano, Michael S.; Coleman, Jonathan N.

In: Science, Vol. 340, No. 6139, 1226419, 2013.

Research output: Contribution to journalArticle

Nicolosi, V, Chhowalla, M, Kanatzidis, MG, Strano, MS & Coleman, JN 2013, 'Liquid exfoliation of layered materials', Science, vol. 340, no. 6139, 1226419. https://doi.org/10.1126/science.1226419
Nicolosi, Valeria ; Chhowalla, Manish ; Kanatzidis, Mercouri G ; Strano, Michael S. ; Coleman, Jonathan N. / Liquid exfoliation of layered materials. In: Science. 2013 ; Vol. 340, No. 6139.
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