Substantial thermal conductivity reduction in mischmetal skutterudites Mm_xCo_4Sb_12 prepared under high-pressure conditions, due to uneven distribution of the rare-earth elements

Simple item page
dc.contributor.authorGainza, Javier
dc.contributor.authorSerrano Sánchez, F.
dc.contributor.authorPrado Gonjal, Jesús De La Paz
dc.contributor.authorNemes, Norbert Marcel
dc.contributor.authorBiskup Zaja, Nevenko
dc.contributor.authorDura, O.J.
dc.contributor.authorMartínez, J.L.
dc.contributor.authorFauth, F.
dc.contributor.authorAlonso, J.A.
dc.date.accessioned2024-05-29T14:43:46Z
dc.date.available2024-05-29T14:43:46Z
dc.date.issued2019-04-14
dc.descriptionJuan de la Cierva fellowship
dc.description.abstractThermoelectric mischmetal-filled Mm(x)Co(4)Sb(12) (Mm: natural cocktail of rare-earth elements, mostly Ce and La) skutterudites have been synthesized and sintered in one step under high-pressure conditions at 3.5 GPa in a piston-cylinder hydrostatic press. Synchrotron X-ray diffraction patterns display a splitting of the diffraction peaks ascribed to purely Ce-, and Mm-filled skutterudite phases, which have been analyzed and confirmed by high-resolution TEM and EELS. A total thermal conductivity () of 1.51 W m(-1) K-1 is measured at 773 K for Mm(0.5)Co(4)Sb(12), below that of other filled skutterudites, which is promoted by the enhanced phonon scattering over a broad range of the phonon spectrum due to the inhomogeneous and nanoscale mischmetal inclusion. Compared to undoped CoSb3 skutterudite synthesized by conventional methods, is reduced by a factor of 3, while the power factor is also substantially enhanced.
dc.description.departmentDepto. de Física de Materiales
dc.description.departmentDepto. de Química Inorgánica
dc.description.facultyFac. de Ciencias Físicas
dc.description.facultyFac. de Ciencias Químicas
dc.description.facultyInstituto Pluridisciplinar (IP)
dc.description.fundingtypePagado por el autor
dc.description.refereedTRUE
dc.description.sponsorshipMinisterio de Economia y Competitividad (España)
dc.description.sponsorshipMinisterio de Ciencia e Innovación (España)
dc.description.sponsorshipAgencia Estatal deInvestigación (España)
dc.description.sponsorshipComunidad de Madrid
dc.description.sponsorshipEuropean Commission
dc.description.statuspub
dc.identifier.citationJ. Gainza, F. Serrano-Sánchez, J. Prado-Gonjal, N. M. Nemes, N. Biskup, O. J. Dura, J. L. Martínez, F. Fauth and J. A. Alonso, J. Mater. Chem. C, 2019, 7, 4124–4131.
dc.identifier.doi10.1039/c8tc06461j
dc.identifier.essn2050-7534
dc.identifier.issn2050-7526
dc.identifier.officialurlhttp://doi.org/10.1039/c8tc06461j
dc.identifier.relatedurlhttps://pubs.rsc.org/en/content/articlelanding/2019/tc/c8tc06461j
dc.identifier.urihttps://hdl.handle.net/20.500.14352/104550
dc.issue.number14
dc.journal.titleJournal of Materials Chemistry C
dc.language.isoeng
dc.page.final4131
dc.page.initial4124
dc.publisherRoyal Society of Chemistry
dc.relation.projectIDinfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/MAT2017-84496-R/ES/MATERIALES PARA CONVERSION DE ENERGIA: OXIDOS, CALCOGENUROS, PNICTUROS Y HALUROS/
dc.relation.projectIDinfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/MAT2017-87134-C2-2-R/ES/HACIA MATERIALES CUANTICOS EMERGENTES EN INTERFASES DE OXIDOS COMPLEJOS/
dc.relation.projectIDinfo:eu-repo/grantAgreement/MINECO//MAT2015-66888-C3-3-R/ES/MAGNETISMO EN LA NANOESCALA: EXPLORANDO NUEVAS RUTAS (CRECIMIENTO Y CARACTERIZACION)/
dc.relation.projectID2017-T2/I ND-5597
dc.relation.projectIDPoC2015-MAGTOOLS
dc.rightsAttribution 4.0 Internationalen
dc.rights.accessRightsopen access
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subject.cdu538.9
dc.subject.cdu546
dc.subject.keywordThermoelectric performance
dc.subject.ucmFísica de materiales
dc.subject.ucmQuímica inorgánica (Química)
dc.subject.unesco2211 Física del Estado Sólido
dc.subject.unesco2303 Química Inorgánica
dc.titleSubstantial thermal conductivity reduction in mischmetal skutterudites Mm_xCo_4Sb_12 prepared under high-pressure conditions, due to uneven distribution of the rare-earth elements
dc.typejournal article
dc.type.hasVersionVoR
dc.volume.number7
dspace.entity.typePublication
relation.isAuthorOfPublication7a2b8d3d-7159-48e6-a318-76923a9867ed
relation.isAuthorOfPublication697f3953-540b-435a-afc9-ec307315d667
relation.isAuthorOfPublication671e957a-9daa-4bd5-9876-eee854146782
relation.isAuthorOfPublication.latestForDiscovery7a2b8d3d-7159-48e6-a318-76923a9867ed
Download
Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
JMChemistry C 7(14)_Substancial.pdf
Size:
3.44 MB
Format:
Adobe Portable Document Format
downoload Download
Collections
Artículos