Ion speciation: a key for the understanding of the solution properties of ionic liquid mixtures

Detalhes bibliográficos
Autor(a) principal: Kurnia, Kiki A.
Data de Publicação: 2018
Outros Autores: Fernandes, Ana M., Pinho, Simão, Coutinho, João A.P.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10198/20091
Resumo: 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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spelling Ion speciation: a key for the understanding of the solution properties of ionic liquid mixturesRecently, 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.We thank the CICECO – Aveiro Institute of Materials, POCI-01- 0145-FEDER-007679 (Ref. FCT UID/CTM/50011/2019) and Associate Laboratory LSRE-LCM, POCI-01-0145-FEDER-006984 (Ref. FCT UID/ EQU/50020/2019), financed by national funds through the FCT/MEC and when appropriate co-financed by FEDDER under the PT2020 Partnership Agreement.Biblioteca Digital do IPBKurnia, Kiki A.Fernandes, Ana M.Pinho, SimãoCoutinho, João A.P.2018-01-19T10:00:00Z20192019-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10198/20091engKurnia, 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. 21626-216321463-9076https://doi.org/10.1039/c9cp04533cinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-11-21T10:45:54Zoai:bibliotecadigital.ipb.pt:10198/20091Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T23:10:53.154525Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Ion speciation: a key for the understanding of the solution properties of ionic liquid mixtures
title Ion speciation: a key for the understanding of the solution properties of ionic liquid mixtures
spellingShingle Ion speciation: a key for the understanding of the solution properties of ionic liquid mixtures
Kurnia, Kiki A.
title_short Ion speciation: a key for the understanding of the solution properties of ionic liquid mixtures
title_full Ion speciation: a key for the understanding of the solution properties of ionic liquid mixtures
title_fullStr Ion speciation: a key for the understanding of the solution properties of ionic liquid mixtures
title_full_unstemmed Ion speciation: a key for the understanding of the solution properties of ionic liquid mixtures
title_sort Ion speciation: a key for the understanding of the solution properties of ionic liquid mixtures
author Kurnia, Kiki A.
author_facet Kurnia, Kiki A.
Fernandes, Ana M.
Pinho, Simão
Coutinho, João A.P.
author_role author
author2 Fernandes, Ana M.
Pinho, Simão
Coutinho, João A.P.
author2_role author
author
author
dc.contributor.none.fl_str_mv Biblioteca Digital do IPB
dc.contributor.author.fl_str_mv Kurnia, Kiki A.
Fernandes, Ana M.
Pinho, Simão
Coutinho, João A.P.
description 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.
publishDate 2018
dc.date.none.fl_str_mv 2018-01-19T10:00:00Z
2019
2019-01-01T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10198/20091
url http://hdl.handle.net/10198/20091
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 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
1463-9076
https://doi.org/10.1039/c9cp04533c
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