High resolution NMR of water absorbed in single-wall carbon nanotubes

Sekhaneh, W.; Kotecha, M.; Dettlaff-Weglikowska, U.; Veeman, W. S.

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High resolution NMR of water absorbed in single-wall carbon nanotubes

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Dettlaff-Weglikowska, U.
Abteilung v. Klitzing, Former Departments, Max Planck Institute for Solid State Research, Max Planck Society;

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Sekhaneh, W., Kotecha, M., Dettlaff-Weglikowska, U., & Veeman, W. S. (2006). High resolution NMR of water absorbed in single-wall carbon nanotubes. Chemical Physics Letters, 428(1-3), 143-147.

Cite as: https://hdl.handle.net/21.11116/0000-000E-FBBA-6

Abstract

H-1 MAS NMR study of water absorbed in open single-wall carbon
nanotubes (SWCNTs) of average diameter 1.0 nm, synthesized with a Fe
catalyst, was performed. Magic angle spinning significantly increases
the spectral resolution and the spectrum shows that there are at least
two distinct chemical shift regions for the water proton. From
temperature dependent measurements, we assign the two chemical shift
ranges to water absorbed inside and outside the nanotube. The spectra
as a function of the water content show that the first water molecules
that are absorbed by the dry material are absorbed inside the tubes.
(c) 2006 Elsevier B.V. All rights reserved.