Journal article

Nanolubrication in deep eutectic solvents

Abstract:: We report surface force balance measurements of the normal surface force and friction between two mica surfaces separated by a nanofilm of the deep eutectic solvent ethaline. Ethaline, a 1 : 2 mixture of choline chloride and ethylene glycol, was studied under dry conditions, under ambient conditions and with added water, revealing surface structural layers and quantised frictional response highly sensitive to water content, including regions of super-lubric behaviour under dry conditions and with added water. We also report exceptionally long-ranged electrostatic repulsion far in excess of that predicted by Debye–Hückel theory for a system with such high electrolyte content, consistent with previously reported observations of “underscreening” in ionic liquid and concentrated aqueous electrolyte systems [Smith et al., J. Phys. Chem. Lett., 2016, 7(12), 2157].

Publication status:: Published

Peer review status:: Peer reviewed

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APA Style

Hallett, J. E., Hayler, H. J., & Perkin, S. (2020). Nanolubrication in deep eutectic solvents. Physical Chemistry Chemical Physics, 22(36), 20253–20264.

MLA Style

Hallett, J. E., et al. “Nanolubrication in Deep Eutectic Solvents.” Physical Chemistry Chemical Physics, vol. 22, no. 36, Royal Society of Chemistry, 2020, pp. 20253–64.

Chicago Style

Hallett, JE, HJ Hayler, and S Perkin. 2020. “Nanolubrication in Deep Eutectic Solvents.” Physical Chemistry Chemical Physics 22 (36): 20253–64.
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Files:: d0cp03787g-VoR.pdf

(Preview, Version of record, 3.7MB, Terms of use)

Publisher copy:: 10.1039/d0cp03787g

Authors

+ Hallett, JE More by this author

Institution:: University of Oxford
Division:: MPLS
Department:: Chemistry
Sub department:: Physical & Theoretical Chem
Role:: Author
ORCID:: 0000-0002-9747-9980

+ Hayler, HJ More by this author

Institution:: University of Oxford
Division:: MPLS
Department:: Chemistry
Sub department:: Physical & Theoretical Chem
Role:: Author

+ Perkin, S More by this author

Institution:: University of Oxford
Division:: MPLS
Department:: Chemistry
Sub department:: Physical & Theoretical Chem
Role:: Author

+ European Commission More from this funder

Grant:: 676861

Publisher:: Royal Society of Chemistry
Journal:: Physical Chemistry Chemical Physics More from this journal
Volume:: 22
Issue:: 36
Pages:: 20253-20264
Publication date:: 2020-08-26
Acceptance date:: 2020-08-26
DOI:: 10.1039/d0cp03787g
EISSN:: 1463-9084
ISSN:: 1463-9076

Language:: English
Keywords:: FFR
Pubs id:: 1128882
Local pid:: pubs:1128882
Deposit date:: 2020-08-27

Terms of use

Copyright holder:: Hallett, JE et al.
Copyright date:: 2020
Rights statement:: © The Authors 2020. This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.

Licence:: CC Attribution (CC BY)

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