An ionic liquid lubricant enables superlubricity to be "switched on" in situ using an electrical potential

Hua Li; Ross J. Wood; Mark W. Rutland; Rob Atkin

doi:10.1039/c4cc00979g

An ionic liquid lubricant enables superlubricity to be "switched on" in situ using an electrical potential

Hua Li, Ross J. Wood, Mark W. Rutland, Rob Atkin

School of Molecular Sciences

Research output: Contribution to journal › Article › peer-review

167 Citations (Scopus)

Abstract

Atomic force microscopy measurements reveal that superlubricity can be "switched" on and off in situ when an ionic liquid is used to lubricate the silica-graphite interface. Applying a potential to the graphite surface changes the ion composition of the boundary layer and thus the lubricity. At positive potentials, when the interfacial ion layer is anion rich, friction falls to ultra-low levels.

Original language	English
Pages (from-to)	4368-4370
Number of pages	3
Journal	Chemical Communications
Volume	50
Issue number	33
DOIs	https://doi.org/10.1039/c4cc00979g
Publication status	Published - 28 Apr 2014

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abstract = "Atomic force microscopy measurements reveal that superlubricity can be {"}switched{"} on and off in situ when an ionic liquid is used to lubricate the silica-graphite interface. Applying a potential to the graphite surface changes the ion composition of the boundary layer and thus the lubricity. At positive potentials, when the interfacial ion layer is anion rich, friction falls to ultra-low levels.",

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AU - Atkin, Rob

PY - 2014/4/28

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AB - Atomic force microscopy measurements reveal that superlubricity can be "switched" on and off in situ when an ionic liquid is used to lubricate the silica-graphite interface. Applying a potential to the graphite surface changes the ion composition of the boundary layer and thus the lubricity. At positive potentials, when the interfacial ion layer is anion rich, friction falls to ultra-low levels.

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An ionic liquid lubricant enables superlubricity to be "switched on" in situ using an electrical potential

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