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A glance at novel ionanofluids incorporating silk-derived carbon dots

2024Journal article Restricted access
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dc.contributor.authorDuarte, Tiago A. G.
dc.contributor.authorPereira, Rui F. P.
dc.contributor.authorMedronho, Bruno
dc.contributor.authorMaltseva, Elizaveta S.
dc.contributor.authorKrivoshapkina, Elena F.
dc.contributor.authorVarela-Dopico, Alejandro
dc.contributor.authorTaboada, Pablo
dc.contributor.authorFu, Lianshe
dc.contributor.authorFerreira, Rute A. S.
dc.contributor.authorde Zea Bermudez, Verónica
dc.date.accessioned2024-03-05T09:37:49Z
dc.date.available2024-03-05T09:37:49Z
dc.date.issued2024
dc.description.abstractOne of the hallmarks of the current efforts in the field of thermal energy is heat transfer enhancement. Ionanofluids (INFs), a combination of nanomaterials and ionic liquids (ILs), are an appealing category of thermal fluids. In this work, we introduce sustainable INFs composed of carbon dots derived from Bombyx mori silk fibroin (SF) dispersed in a mixture of 1-butyl-3-methylimidazolium chloride (IL1) and 1-(4-sulfobutyl)-3-methylimidazolium triflate (IL2). The syntheses were performed at mild conditions, with reaction times of 3, 4, and 5 h, and without purification steps. The INFs display room-temperature emission in the visible spectral range with quantum yield values up to 0.09 and are essentially viscous fluids (G '' > G '). A marked shear thinning behavior is observed at high shear rates, particularly for the systems SFIL1IL2-3h and SFIL1IL2-4h. The INFs demonstrate relatively high heat capacity and thermal conductivity values in comparison to state-of-the-art INFs. Under suitable illumination conditions, the INFs can convert light into heat in an efficient manner, with photothermal conversion efficiencies of up to 28%, similar to other reported INFs. SFIL1IL2-5h exhibits remarkable stability over time within the range of working temperatures. This work paves the way for the development of new thermal fluids for enhanced heat transfer technologies using sustainable synthesis routes and natural raw precursor materials.pt_PT
dc.description.sponsorshipPID2019-109517RB-I00; Grant ED431C 2022/18. ERDF; FSER-2022-0002pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1021/acs.chemmater.3c01370pt_PT
dc.identifier.issn0897-4756
dc.identifier.urihttp://hdl.handle.net/10400.1/20475
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherAmerican Chemical Societypt_PT
dc.relationChemistry Center - Vila Real
dc.relationChemistry Center - Vila Real
dc.relationCICECO-Aveiro Institute of Materials
dc.relationCICECO-Aveiro Institute of Materials
dc.relationCICECO – Aveiro Institute of Materials
dc.subjectIonanofluidspt_PT
dc.subjectSilk fibroinpt_PT
dc.subjectCarbondotspt_PT
dc.subjectImidazoliumionicliquidspt_PT
dc.subjectThermalfluidspt_PT
dc.titleA glance at novel ionanofluids incorporating silk-derived carbon dotspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleChemistry Center - Vila Real
oaire.awardTitleChemistry Center - Vila Real
oaire.awardTitleCICECO-Aveiro Institute of Materials
oaire.awardTitleCICECO-Aveiro Institute of Materials
oaire.awardTitleCICECO – Aveiro Institute of Materials
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00616%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F00616%2F2020/PT
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.citation.endPage1152pt_PT
oaire.citation.issue3pt_PT
oaire.citation.startPage1136pt_PT
oaire.citation.titleChemistry of Materialspt_PT
oaire.citation.volume36pt_PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
person.familyNameMedronho
person.givenNameBruno
person.identifier.ciencia-id6918-9AB3-8D22
person.identifier.orcid0000-0003-0972-1739
person.identifier.ridP-5927-2014
person.identifier.scopus-author-id9940656700
project.funder.identifierhttp://doi.org/10.13039/501100001871
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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
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
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