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 language | English |
|---|---|
| Article number | 1226419 |
| Journal | Science |
| Volume | 340 |
| Issue number | 6139 |
| DOIs | |
| Publication status | Published - 2013 |
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ASJC Scopus subject areas
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Cite this
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 journal › Article
}
TY - JOUR
T1 - Liquid exfoliation of layered materials
AU - Nicolosi, Valeria
AU - Chhowalla, Manish
AU - Kanatzidis, Mercouri G
AU - Strano, Michael S.
AU - Coleman, Jonathan N.
PY - 2013
Y1 - 2013
N2 - 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.
AB - 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.
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U2 - 10.1126/science.1226419
DO - 10.1126/science.1226419
M3 - Article
VL - 340
JO - Science
JF - Science
SN - 0036-8075
IS - 6139
M1 - 1226419
ER -