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Solvent–surface interactions between nanodiamond and ethanol studied with in situ infrared spectroscopy

Inel, GA; Ungureau, E-M; Varley, TS; Hirani, M; Holt, KB; (2016) Solvent–surface interactions between nanodiamond and ethanol studied with in situ infrared spectroscopy. Diamond and Related Materials , 61 (C) pp. 7-13. 10.1016/j.diamond.2015.11.001. Green open access

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Abstract

In situ Attenuated Total reflectance infrared (ATR IR) spectroscopy is used to study the interaction between ethanol vapour and oxidised nanodiamond (ND) surfaces. On initial exposure an amorphous multilayer of adsorbed ethanol is observed, but over ca. 30 min a loss in intensity of ν(OH) and δ(OH) bands indicates a preferential binding of the ethanol –OH with the ND surface. Other spectral changes indicate ordering of the ethanol molecules on the surface and their confinement within the pores of the ND structure in specific conformations. Changes in the IR spectrum also suggest that vibrational frequencies of carbonyl groups on the ND surface are affected by the adsorption of ethanol and that surface-bound water is either displaced or involved in hydrogen-bonding with ethanol.

Type: Article
Title: Solvent–surface interactions between nanodiamond and ethanol studied with in situ infrared spectroscopy
Open access status: An open access version is available from UCL Discovery
DOI: 10.1016/j.diamond.2015.11.001
Publisher version: http://dx.doi.org/10.1016/j.diamond.2015.11.001
Language: English
Additional information: Copyright © 2015 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Chemistry
URI: https://discovery.ucl.ac.uk/id/eprint/1475409
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