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Tetraalkylammonium Chlorides as Melting Point Depressants of Ionic Liquids

2023Journal article Open access
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dc.contributor.authorMartins, Mónia A. R.
dc.contributor.authorAbranches, Dinis O.
dc.contributor.authorSilva, Liliana P.
dc.contributor.authorPinho, Simão
dc.contributor.authorCoutinho, João A.P.
dc.date.accessioned2024-06-27T13:59:13Z
dc.date.available2024-06-27T13:59:13Z
dc.date.issued2023
dc.description.abstractWith the (re)advent of eutectic mixtures within the field of deep eutectic solvents, special attention has been given to the measurement of solid–liquid equilibrium (SLE) phase diagrams, supported by the relevant information they can provide on the molecular interactions and melting temperature depression of any given system. As such, this work investigates the SLE phase diagrams of mixtures between ionic liquids and tetraalkylammonium chlorides (methyl, ethyl, and propyl), with the goal of decreasing the melting temperature of ionic liquids and ammonium salts, thus, expanding their application scope. Results show that tetraalkylammonium salts exhibit negative deviations from thermodynamic ideality when mixed with ionic liquids, which are increased by increasing their alkyl chain length and are interpreted in terms of anion exchange mechanisms. In turn, this nonideality contributes greatly to depression of the melting point of the ionic liquids examined. Overall, this work demonstrates that the correct combination of tetraalkylammonium/ILs anions and cations can lead to significant melting point depressions in both species, thus creating new ionic liquid mixtures using an approach akin to that used to form deep eutectic solvents.pt_PT
dc.description.sponsorshipThis work was developed within the scope of the project CICECO-Aveiro Institute of Materials, UIDB/50011/2020, UIDP/50011/2020 and LA/P/0006/2020, and CIMO (UIDB/00690/2020 and UIDP/00690/2020) and SusTEC (LA/P/0007/2021), financed by national funds through the FCT/MEC (PIDDAC). L.P.S. acknowledges FCT for her Ph.D. Grant (SFRH/BD/135976/2018).pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationMartins, Mónia A.R.; Abranches, Dinis O.; Silva, Liliana P.; Pinho, Simão; Coutinho, João A.P. (2023). Tetraalkylammonium Chlorides as Melting Point Depressants of Ionic Liquids. Journal of Solution Chemistry. ISSN 0095-9782. 53:4, p. 538-551pt_PT
dc.identifier.doi10.1007/s10953-023-01285-0pt_PT
dc.identifier.issn0095-9782
dc.identifier.urihttp://hdl.handle.net/10198/29961
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherSpringerpt_PT
dc.relationLA/P/0007/2021pt_PT
dc.relationCICECO-Aveiro Institute of Materials
dc.relationCICECO-Aveiro Institute of Materials
dc.relationCICECO – Aveiro Institute of Materials
dc.relationMountain Research Center
dc.relationMountain Research Center
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectAmmonium saltspt_PT
dc.subjectDeep eutectic solventspt_PT
dc.subjectIonic liquidspt_PT
dc.subjectPhase diagramspt_PT
dc.subjectSolid–liquid equilibriumpt_PT
dc.subjectThermodynamic idealitypt_PT
dc.titleTetraalkylammonium Chlorides as Melting Point Depressants of Ionic Liquidspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleCICECO-Aveiro Institute of Materials
oaire.awardTitleCICECO-Aveiro Institute of Materials
oaire.awardTitleCICECO – Aveiro Institute of Materials
oaire.awardTitleMountain Research Center
oaire.awardTitleMountain Research Center
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/LA%2FP%2F0006%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00690%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F00690%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBD%2F135976%2F2018/PT
oaire.citation.endPage551pt_PT
oaire.citation.issue4pt_PT
oaire.citation.startPage538pt_PT
oaire.citation.titleJournal of Solution Chemistrypt_PT
oaire.citation.volume53pt_PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
person.familyNameMartins
person.familyNamePinho
person.givenNameMónia A. R.
person.givenNameSimão
person.identifier810882
person.identifier.ciencia-id8117-0EEA-6B8E
person.identifier.ciencia-id481D-73AD-8D0F
person.identifier.orcid0000-0003-0748-1612
person.identifier.orcid0000-0002-9211-857X
person.identifier.ridD-4148-2013
person.identifier.scopus-author-id56191802400
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project.funder.identifierhttp://doi.org/10.13039/501100001871
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project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
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rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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