Orientador(es)
Resumo(s)
Recently, combinations of two (or more) ionic liquids, known as ionic liquid mixtures, have become
popular and have a broad range of applications. However, the fundamental knowledge on the molecular
interactions that exist in ionic liquid mixtures is far from being understood. In this work, the experimental
measurement of the water activity coefficient and computational modelling using Conductor-like
Screening Model for Real Solvent (COSMO-RS) were carried out to get an insight into the molecular
interactions that are present in ionic liquid mixtures in aqueous solution. The results show that the
combination of two ionic liquids of different basicity in aqueous solution allows fine tuning of the water
activities, covering a wide range of values that could replace several pure fluids. This is an important
feature resulting from the unexpected ion speciation of the ionic liquid mixtures in aqueous solution.
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Contexto Educativo
Citação
Kurnia, Kiki Adi; Fernandes, Ana M.; Pinho, Simão P.; Coutinho, João A.P. (2019). Ion speciation: A key for the understanding of the solution properties of ionic liquid mixtures. Physical Chemistry Chemical Physics. ISSN 1463-9076. 21, p. 21626-21632