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

Research output: Contribution to journalArticle

84 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 languageEnglish
Pages (from-to)4368-4370
Number of pages3
JournalChemical Communications
Volume50
Issue number33
DOIs
Publication statusPublished - 28 Apr 2014
Externally publishedYes

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