Jump to main content
Jump to site search

Issue 16, 2010
Previous Article Next Article

Resonance shear measurement of nanoconfined ionic liquids

Author affiliations


Two types of imidazolium-based ionic liquid (IL), 1-butyl-3-methylimidazolium bis(trifluoromethanesulfonyl)amide ([C4mim][NTF2]) and 1-butyl-3-methylimidazolium tetrafluoroborate ([C4mim][BF4]), confined between silica surfaces were investigated by surface force apparatus (SFA)-based resonance shear measurements together with surface force measurements. The surface force profiles in the ILs showed oscillatory solvation forces below the characteristic surface separations: 10.0 nm for [C4mim][NTf2] and 6.9 nm for [C4mim][BF4]. The more pronounced solvation force found in [C4mim][NTf2] suggests that the crystal-forming ability of the IL contributes to the stronger layering of the ILs adjacent to the surface. The resonance shear measurement and the physical model analysis revealed that the viscosities of the confined ILs were 1–3 orders of magnitude higher than that of the bulk IL. This paper also focused on the correlation between the resonance shear behaviour and the lubrication property of the ILs, and the suspension rheology in the ILs. An understanding of the solid–IL interface and of ILs confined in nanospace will facilitate the further development of novel applications employing ILs.

Graphical abstract: Resonance shear measurement of nanoconfined ionic liquids

Back to tab navigation

Supplementary files

Publication details

The article was received on 10 Nov 2009, accepted on 02 Feb 2010 and first published on 11 Mar 2010

Article type: Paper
DOI: 10.1039/B923571J
Phys. Chem. Chem. Phys., 2010,12, 4066-4071

  •   Request permissions

    Resonance shear measurement of nanoconfined ionic liquids

    K. Ueno, M. Kasuya, M. Watanabe, M. Mizukami and K. Kurihara, Phys. Chem. Chem. Phys., 2010, 12, 4066
    DOI: 10.1039/B923571J

Search articles by author