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Effect of Lithium ions on rheology and interfacial forces in Ethylammonium Nitrate and Ethanolammonium Nitrate
RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Life Science. Department of Surface and Corrosion Science, School of Chemical Science and Engineering, KTH Royal Institute of Technology.
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. (Graph Presented).

Place, publisher, year, edition, pages
2016. Vol. 120, no 47, p. 26960-26967
Keyword [en]
atomic force microscopy, elasticity, ionic liquids, Lithium, colloidal probe atomic force microscopies, complex viscosity, force curve, friction measurements, interfacial forces, ion cluster, ionic liquid (ils), Lithium ions, nitrates
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Physical Chemistry Other Chemistry Topics
Identifiers
URN: urn:nbn:se:ri:diva-27686DOI: 10.1021/acs.jpcc.6b10626Scopus ID: 2-s2.0-85002202380OAI: oai:DiVA.org:ri-27686DiVA: diva2:1059089
Available from: 2016-12-22 Created: 2016-12-21 Last updated: 2017-11-29Bibliographically approved

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