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Ionic liquid adsorption and nanotribology at the silica-oil interface: hundred-fold dilution in oil lubricates as effectively as the pure ionic liquid

journal contribution
posted on 01.01.2014, 00:00 authored by H Li, P K Cooper, Anthony SomersAnthony Somers, M W Rutland, Patrick HowlettPatrick Howlett, Maria ForsythMaria Forsyth, R Atkin
The remarkable physical properties of ionic liquids (ILs) make them potentially excellent lubricants. One of the challenges for using ILs as lubricants is their high cost. In this article, atomic force microscopy (AFM) nanotribology measurements reveal that a 1 mol % solution of IL dissolved in an oil lubricates the silica surface as effectively as the pure IL. The adsorption isotherm shows that the IL surface excess need only be approximately half of the saturation value to prevent surface contact and effectively lubricate the sliding surfaces. Using ILs in this way makes them viable for large-scale applications.

History

Journal

Journal of physical chemistry letters

Volume

5

Issue

23

Pagination

4095 - 4099

Publisher

American Chemical Society

Location

Washington, D.C.

eISSN

1948-7185

Language

eng

Publication classification

C Journal article; C1 Refereed article in a scholarly journal

Copyright notice

2014, American Chemical Society