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Lubricants 2018, 6(1), 9; https://doi.org/10.3390/lubricants6010009

Are Ionic Liquids Good Boundary Lubricants? A Molecular Perspective

Department of Chemistry, Physical and Theoretical Chemistry Laboratory, University of Oxford, Oxford OX1 3QZ, UK
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Received: 18 December 2017 / Revised: 4 January 2018 / Accepted: 10 January 2018 / Published: 16 January 2018
(This article belongs to the Special Issue Ionic Liquids: Friction and Lubrication Mechanisms)
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Abstract

The application of ionic liquids as lubricants has attracted substantial interest over the past decade and this has produced a rich literature. The aim of this review is to summarize the main findings about frictional behavior of ionic liquids in the boundary lubrication regime. We first recall why the unusual properties of ionic liquids make them very promising lubricants, and the molecular mechanisms at the origin of their lubricating behavior. We then point out the main challenges to be overcome in order to optimise ionic liquid lubricant performance for common applications. We finally discuss their use in the context of electroactive lubrication. View Full-Text
Keywords: ionic liquid; boundary lubrication; molecular friction; nanotribology ionic liquid; boundary lubrication; molecular friction; nanotribology
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Lhermerout, R.; Diederichs, C.; Perkin, S. Are Ionic Liquids Good Boundary Lubricants? A Molecular Perspective. Lubricants 2018, 6, 9.

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