Issue 12, 2012

Unweaving the rainbow: a review of the relationship between single-walled carbon nanotube molecular structures and their chemical reactivity

Abstract

Single-walled carbon nanotubes (SWNTs) are a fundamental family of distinct molecules, each bearing the possibility of different reactivities due to their intrinsically distinct chemical properties. SWNT syntheses generate a heterogeneous mixture of species with varying electronic character, lengths, diameters and helicities, (n,m), as well as other amorphous, graphitic and metal catalyst impurities. In recent years, selective syntheses and post-synthetic separation strategies have advanced, driven by the requirement for pure SWNTs displaying particular features. Covalent surface modifications are widely-used to adapt SWNTs for specific applications with modified solubility, compatibility and specific functionalities. In many cases, such reactions have been found to be selective, illuminating the fundamentally distinct chemistry of each (n,m) species. This differential reactivity has found immediate utility in facilitating the sorting of nanotubes according to specific diameter, electronic properties and, most importantly, helicity. In this tutorial review, we discuss a wide range of selective reactions, the mechanisms that are thought to govern selectivity, and the challenges of separating, characterising and regenerating the modified SWNTs.

Graphical abstract: Unweaving the rainbow: a review of the relationship between single-walled carbon nanotube molecular structures and their chemical reactivity

Article information

Article type
Tutorial Review
Submitted
05 Dec 2011
First published
19 Apr 2012

Chem. Soc. Rev., 2012,41, 4409-4429

Unweaving the rainbow: a review of the relationship between single-walled carbon nanotube molecular structures and their chemical reactivity

S. A. Hodge, M. K. Bayazit, K. S. Coleman and M. S. P. Shaffer, Chem. Soc. Rev., 2012, 41, 4409 DOI: 10.1039/C2CS15334C

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