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Infinite dilution activity coefficients in the smectic and isotropic phases of Tetrafluoroborate-based ionic liquids

2021Journal article Open access
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dc.contributor.authorMartins, Mónia A.R.
dc.contributor.authorVilas-Boas, Sérgio M.
dc.contributor.authorCordova, Isabella Weber
dc.contributor.authorCarvalho, Pedro J.
dc.contributor.authorDomańska, Urszula
dc.contributor.authorFerreira, Olga
dc.contributor.authorCoutinho, João A.P.
dc.contributor.authorPinho, Simão
dc.date.accessioned2018-02-19T10:00:00Z
dc.date.accessioned2021-11-23T11:27:37Z
dc.date.available2018-01-19T10:00:00Z
dc.date.available2021-11-23T11:27:37Z
dc.date.issued2021
dc.description.abstractInverse gas chromatography was used to obtain the activity coefficients at infinite dilution (γ13∞) of several organic solutes and water in the thermotropic ionic liquid crystal phases of both [C12mim][BF4] and [C14mim][BF4] and their isotropic phases. In the smectic to isotropic transition, a change in the linear representation of the natural logarithm of γ13∞ with the reciprocal temperature was observed for [C14mim][BF4], and was more evident for alkanes, alkylbenzenes, esters, and alcohols, that can be related to structural modifications of the stationary phase. Results are interpreted in terms of the enthalpic and entropic contributions of solute-IL interactions. Selectivities and capacities of important separation problems, such as octane/benzene and cyclohexane/benzene, were calculated and compared with literature values for separating agents such as N-methyl-2-pyrrolidinone, sulfolane, and ionic liquids presenting the [BF4]- anion combined with several imidazolium-based cations. It is shown that to achieve maximum separation efficiency, imidazolium cations with short alkyl chain lengths such as [C2mim][BF4] should be used, whereas high capacities require larger alkyl chain lengths.en_EN
dc.description.sponsorshipThis work was developed within the scope of the project CICECO-Aveiro Institute of Materials, UIDB/50011/2020 and UIDP/50011/2020 and CIMO-Mountain Research Center, UIDB/00690/2020, financed by national funds through the Portuguese Foundation for Science and Technology/MCTES. M.A.R.M. acknowledges financial support from NORTE-01-0145-FEDER-000006 funded by NORTE2020 through PT2020 and ERDF. S.M.V.B. acknowledges FCT for his Ph.D. grant SFRH/BD/138149/2018. P.J.C. acknowledges FCT for his contract under the Investigator FCT 2015 contract number IF/00758/2015.
dc.description.versioninfo:eu-repo/semantics/publishedVersionen_EN
dc.identifier.citationMartins, Mónia A.R.; Vilas-Boas, Sérgio M.; Cordova, Isabella Weber; Carvalho, Pedro J.; Domańska, Urszula; Ferreira, Olga; Coutinho, João A.P.; Pinho, Simão P. (2021). Infinite Dilution Activity Coefficients in the Smectic and Isotropic Phases of Tetrafluoroborate-Based Ionic Liquids. Journal of Chemical and Engineering Data. ISSN 0021-9568. 66:6, p. 2587-2596en_EN
dc.identifier.doi10.1021/acs.jced.1c00182en_EN
dc.identifier.issn0021-9568
dc.identifier.urihttp://hdl.handle.net/10198/24327
dc.language.isoeng
dc.peerreviewedyesen_EN
dc.relationCICECO-Aveiro Institute of Materials
dc.relationCICECO-Aveiro Institute of Materials
dc.relationMountain Research Center
dc.relationNovos Processos de Separação para o Fracionamento e Purificação de Terpenos
dc.titleInfinite dilution activity coefficients in the smectic and isotropic phases of Tetrafluoroborate-based ionic liquidsen_EN
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleCICECO-Aveiro Institute of Materials
oaire.awardTitleCICECO-Aveiro Institute of Materials
oaire.awardTitleMountain Research Center
oaire.awardTitleNovos Processos de Separação para o Fracionamento e Purificação de Terpenos
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F50011%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F50011%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00690%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBD%2F138149%2F2018/PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
person.familyNameCordova
person.familyNameFerreira
person.familyNamePinho
person.givenNameIsabella Weber
person.givenNameOlga
person.givenNameSimão
person.identifier810882
person.identifier.ciencia-id6A14-116E-38E8
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person.identifier.ciencia-id481D-73AD-8D0F
person.identifier.orcid0000-0003-0753-8930
person.identifier.orcid0000-0001-8414-3479
person.identifier.orcid0000-0002-9211-857X
person.identifier.ridM-4567-2013
person.identifier.ridD-4148-2013
person.identifier.scopus-author-id57203083219
person.identifier.scopus-author-id7003570175
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccessen_EN
rcaap.typearticleen_EN
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