Microwave synthesis & sintering of Sm and Ca co-doped ceria ceramics

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dc.contributor.authorPrado Gonjal, Jesús De La Paz
dc.contributor.authorHeuguet, Romain
dc.contributor.authorMuñoz Gil, Daniel
dc.contributor.authorRivera Calzada, Alberto Carlos
dc.contributor.authorMarinel, Sylvain
dc.contributor.authorMorán Miguélez, Emilio
dc.contributor.authorSchmidt, Rainer
dc.date.accessioned2024-01-22T12:05:34Z
dc.date.available2024-01-22T12:05:34Z
dc.date.issued2015
dc.description.abstractIn this work we report on the combined use of microwave (MW) heating sources for the powdersynthesisandthe ceramic sinteringofSmandCaco-doped ceria Ce0.8Sm0.18Ca0.02O1.9 polycrystalline materials for potential application as an electrolyte in intermediatetemperature solid oxide fuel cells (IT-SOFCs). We investigate the crystal structure, ceramic microstructure and the oxygen ion conductivity in detail and compare the latter to conventionally sintered ceramics. MW sintering of ceramic pellets leads to only slightly increased resistivity as compared to conventional sintering, but offers massive energy and time savings for potential industrial production processes. Exceptionally high oxygen ion conductivity without any significant electronic contribution was found in MW synthesized and MW sintered pellets, where the total resistivity, composed of grain boundary and bulk contributions, was found to be in the range of 0.5-1 kohmios at 500 ºC. Sm- and Ca co-doped ceria may be well-suited for electrolyte materials in IT-SOFCs.
dc.description.departmentDepto. de Química Inorgánica
dc.description.facultyFac. de Ciencias Químicas
dc.description.refereedTRUE
dc.description.sponsorshipComunidad de Madrid
dc.description.sponsorshipMinisterio de Ciencia, Innovación y Universidades (España)
dc.description.sponsorshipEuropean Commission
dc.description.sponsorshipMinisterio de Economía y Competitividad (España)
dc.description.statuspub
dc.identifier.citationPrado-Gonjal, Jesús, et al. «Microwave Synthesis & Sintering of Sm and Ca Co-Doped Ceria Ceramics». International Journal of Hydrogen Energy, vol. 40, n.o 45, diciembre de 2015, pp. 15640-51. https://doi.org/10.1016/j.ijhydene.2015.07.161.
dc.identifier.doi10.1016/j.ijhydene.2015.07.161
dc.identifier.issn0360-3199
dc.identifier.officialurlhttps://doi.org/10.1016/j.ijhydene.2015.07.161
dc.identifier.urihttps://hdl.handle.net/20.500.14352/94347
dc.issue.number45
dc.journal.titleInternational Journal of Hydrogen Energy
dc.language.isoeng
dc.page.final15651
dc.page.initial15640
dc.publisherElsevier
dc.relation.projectID(Materyener S2009/PPQ-1626)
dc.relation.projectIDMAT 2007- 31034
dc.relation.projectIDFP7-PEOPLE2007-1-1-ITN SOPRANO
dc.rights.accessRightsrestricted access
dc.subject.cdu546
dc.subject.keywordIT-SOFC
dc.subject.keywordElectrolyte
dc.subject.keywordCeria
dc.subject.keywordOxygen ion conductivity
dc.subject.ucmQuímica inorgánica (Química)
dc.subject.unesco23 Química
dc.titleMicrowave synthesis & sintering of Sm and Ca co-doped ceria ceramics
dc.typejournal article
dc.type.hasVersionVoR
dc.volume.number40
dspace.entity.typePublication
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