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Issue 13, 2015
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Assemblies of single-walled carbon nanotubes generated by covalent cross-linking with organic linkers

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Abstract

We report the synthesis, characterization and gas adsorption properties of assemblies of single-walled carbon nanotubes (SWNTs) covalently cross-linked by organic linkers prepared by using the Sonogashira coupling reaction. Two different linkers, 1,4-diethynylbenzene and 4,4′-diethynylbiphenyl, have been used to covalently crosslink iodobenzene functionalized SWNTs, resulting in the formation of three-dimensional assemblies, ASWNT-1 and ASWNT-2. These assemblies exhibit high surface areas of 742 and 788 m2 g−1, respectively, while pristine SWNTs have a surface area of 400 m2 g−1. Enhancement in CO2 and H2 uptake capacities is also observed in the ASWNTs.

Graphical abstract: Assemblies of single-walled carbon nanotubes generated by covalent cross-linking with organic linkers

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Article information


Submitted
08 Jan 2015
Accepted
17 Feb 2015
First published
17 Feb 2015

J. Mater. Chem. A, 2015,3, 6747-6750
Article type
Communication

Assemblies of single-walled carbon nanotubes generated by covalent cross-linking with organic linkers

R. Kumar and C. N. R. Rao, J. Mater. Chem. A, 2015, 3, 6747
DOI: 10.1039/C5TA00163C

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