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

Title: Ionic liquid adsorption and nanotribology at the silica-oil interface: hundred-fold dilution in oil lubricates as effectively as the pure ionic liquid
Creator: Li, Hua; Cooper, Peter K.; Somers, Anthony E.; Rutland, Mark W.; Howlett, Patrick C.; Forsyth, Maria; Atkin, Rob
Relation: Journal of Physical Chemistry Letters Vol. 5, Issue 23, p. 4095-4099
Publisher Link: http://dx.doi.org/10.1021/jz5021422
Publisher: American Chemical Society
Resource Type: journal article
Date: 2014
Description: 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.
Subject: surfaces; interfaces; porous materials; catalysis
Identifier: http://hdl.handle.net/1959.13/1299131
Identifier: uon:19793
Identifier: ISSN:1948-7185
Language: eng
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