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Effect of Lithium Ions on Rheology and Interfacial Forces in Ethylammonium Nitrate and Ethanolammonium Nitrate
KTH, School of Chemical Science and Engineering (CHE), Chemistry, Surface and Corrosion Science.ORCID iD: 0000-0003-2773-3573
KTH, School of Chemical Science and Engineering (CHE), Chemistry, Surface and Corrosion Science. SP Technical Research Institute Sweden, Sweden.ORCID iD: 0000-0002-8935-8070
2016 (English)In: The Journal of Physical Chemistry C, ISSN 1932-7447, E-ISSN 1932-7455, Vol. 120, no 47, p. 26960-26967Article in journal (Refereed) Published
Abstract [en]

The effect of added Li+ to two ionic liquids (ILs), ethylammonium nitrate (EAN) and ethanolammonium nitrate (EtAN), has been investigated using rheology and colloidal probe atomic force microscopy (AFM). Rheology data revealed a complex viscosity dependence that can be ascribed to the different bulk nanostructures. AFM force curves revealed steps for the neat ILs, analogous to those in previous studies. The addition of Li+ broadened the steps, which is likely an effect of ion clusters formed. Friction measurements corroborate this data and also showed that the structure of EtAN is much more prone to change as Li+ is added. These results demonstrate the complex behavior of ILs on interfaces and the effect of perturbing such interactions.

Place, publisher, year, edition, pages
American Chemical Society , 2016. Vol. 120, no 47, p. 26960-26967
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Chemical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-199528DOI: 10.1021/acs.jpcc.6b10626ISI: 000389161300040Scopus ID: 2-s2.0-85002202380OAI: oai:DiVA.org:kth-199528DiVA, id: diva2:1065748
Note

QC 20170116

Available from: 2017-01-16 Created: 2017-01-09 Last updated: 2017-08-15Bibliographically approved

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Hjalmarsson, NicklasRutland, Mark W.

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