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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
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posted on 2014-01-01, 00:00 authored by H Li, P K Cooper, Anthony SomersAnthony Somers, M W Rutland, Patrick HowlettPatrick Howlett, Maria ForsythMaria Forsyth, R AtkinThe 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 lettersVolume
5Issue
23Pagination
4095 - 4099Publisher
American Chemical SocietyLocation
Washington, D.C.Publisher DOI
eISSN
1948-7185Language
engPublication classification
C Journal article; C1 Refereed article in a scholarly journalCopyright notice
2014, American Chemical SocietyUsage metrics
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adsorption isothermatomic force microscopeionic liquidslubricant additivesnanotribologyquartz crystal microbalanceScience & TechnologyPhysical SciencesTechnologyChemistry, PhysicalNanoscience & NanotechnologyMaterials Science, MultidisciplinaryPhysics, Atomic, Molecular & ChemicalChemistryScience & Technology - Other TopicsMaterials SciencePhysicsDOUBLE-LAYER STRUCTUREPHYSICOCHEMICAL PROPERTIESGLASS SURFACESFRICTIONSOLVENTSADDITIVESFORCESNANOSTRUCTUREPERFORMANCEADHESION
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