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oai:riubu.ubu.es:10259/43322024-06-12T11:44:59Zcom_10259_4323com_10259_5086com_10259_2604col_10259_4330

García Moreno, Gregorio J. Atilhan, Mert Aparicio Martínez, Santiago 2017-02-09T09:44:02Z 2017-02-09T09:44:02Z 2015-07 http://hdl.handle.net/10259/4332 The adsorption of choline benzoate ([CH][BE]) ionic liquid (IL) on the surface of different hexagonal nanosheets has been studied using Density Functional Theory (DFT) methods. For this, the interaction mechanism, binding energies and electronic structure of [CH][BE] ionic liquid on four types of nanosheets, i.e., graphene, silicene, germanene and boron-nitride, were estimated and compared. The adsorption of [CH][BE] ionic liquid on different nanosheets is mainly featured by van der Waals forces, leading to strong benzoate ion–surface π-stacking. Likewise, there is also an important charge transfer from the anion to the sheet. The electronic structure analysis shows that Si- and Ge-based sheets lead to the largest changes in the HOMO and LUMO levels of choline benzoate. This paper provides new insights into the capability of DFT methods to provide useful information about the adsorption of ionic liquids on nanosheets and how ionic liquid features could be tuned through the adsorption on the suitable nanosheet. Ministerio de Economı´a y Competitividad (Spain, project CTQ2013-40476-R) and Junta de Castilla y León (Spain, project BU324U14). application/pdf eng Royal Society of Chemistry Physical Chemistry Chemical Physics. 2015, V. 17, n. 25, p. 16315-16326 http://dx.doi.org/10.1039/C5CP02432C Chemistry, Physical and theoretical Química física Adsorption of choline benzoate ionic liquid on graphene, silicene, germanene and boron-nitride nanosheets: a DFT perspective info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/openAccess