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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
KTH, School of Chemical Science and Engineering (CHE), Chemistry, Surface and Corrosion Science. SP Technical Research Institute of Sweden.ORCID iD: 0000-0002-8935-8070
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2014 (English)In: Journal of Physical Chemistry Letters, ISSN 1948-7185, E-ISSN 1948-7185, Vol. 5, no 23, 4095-4099 p.Article in journal (Refereed) Published
Abstract [en]

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 Its in this way makes them viable for large-scale applications.

Place, publisher, year, edition, pages
2014. Vol. 5, no 23, 4095-4099 p.
Keyword [en]
adsorption isotherm, atomic force microscope, ionic liquids, lubricant additives, nanotribology, quartz crystal microbalance
National Category
Chemical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-158267DOI: 10.1021/jz5021422ISI: 000345892600005Scopus ID: 2-s2.0-84915737213OAI: oai:DiVA.org:kth-158267DiVA: diva2:778137
Funder
Swedish Research Council
Note

QC 20150109

Available from: 2015-01-09 Created: 2015-01-07 Last updated: 2017-12-05Bibliographically approved

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