Philippi, Frederik;
Rauber, Daniel;
Palumbo, Oriele;
Goloviznina, Kateryna;
McDaniel, Jesse;
Pugh, David;
Suarez, Sophia;
... Welton, Tom; + view all
(2022)
Flexibility is the key to tuning the transport properties of fluorinated imide-based ionic liquids.
Chemical Science
, 32
(13)
pp. 9176-9190.
10.1039/d2sc03074h.
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Abstract
Ionic liquids are becoming increasingly popular for practical applications such as biomass processing and lithium-ion batteries. However, identifying ionic liquids with optimal properties for specific applications by trial and error is extremely inefficient since there are a vast number of potential candidate ions. Here we combine experimental and computational techniques to determine how the interplay of fluorination, flexibility and mass affects the transport properties of ionic liquids with the popular imide anion. We observe that fluorination and flexibility have a large impact on properties such as viscosity, whereas the influence of mass is negligible. Using targeted modifications, we show that conformational flexibility provides a significant contribution to the success of fluorination as a design element. Contrary to conventional wisdom, fluorination by itself is thus not a guarantor for beneficial properties such as low viscosity.
| Type: | Article |
|---|---|
| Title: | Flexibility is the key to tuning the transport properties of fluorinated imide-based ionic liquids |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1039/d2sc03074h |
| Publisher version: | https://doi.org/10.1039/d2sc03074h |
| Language: | English |
| Additional information: | © 2022 The Author(s). Published by the Royal Society of Chemistry.This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/3.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
| UCL classification: | 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 > London Centre for Nanotechnology UCL > Provost and Vice Provost Offices > UCL BEAMS UCL |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10153525 |
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