Structural and microstructural characterization and properties of new phases in the Nd–Sr–Co–(Fe/Mn)–O system as air-electrodes in SOFCs

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dc.contributor.authorBoulahya, Khalid
dc.contributor.authorMuñoz Gil, Daniel
dc.contributor.authorHassan, Shawky
dc.contributor.authorGarcía Martín, Susana
dc.contributor.authorAmador, Ulises
dc.date.accessioned2024-01-22T11:55:03Z
dc.date.available2024-01-22T11:55:03Z
dc.date.issued2016
dc.description.abstractNew oxides of the (NdSr)n+1MO3n+1 (M = Co and Mn or Fe) series are reported. Compounds of composition NdSrCo0.75Fe0.25O4.10, NdSrCo0.75Mn0.25O4.08 and Nd0.5Sr1.5Co0.75Mn0.25O3.86 are the n = 1 members of the Ruddlesden–Popper homologous series (K2NiF4 structural type) as determined by X-ray diffraction and different transmission electron microscopy techniques. Their crystal structure consists of connected (Co–Fe/Mn)O6 octahedra blocks separated by (Nd/Sr)O rock-salt like layers along the c-axis. Interstitial oxygen atoms or anion vacancies are induced depending on composition. Oxides with interstitial oxygen show good performances as intermediate temperature solid oxide fuel cell (IT-SOFC) cathode. The areaspecific resistance values of electrodes made of these oxides at 973 K in air are 0.18 Ω cm2 for NdSrCo0.75Fe0.25O4.10 and NdSrCo0.75Mn0.25O4.08 (comparable to the one of the state-of-the-art materials proposed as cathodes in IT-SOFC), and 1.38 Ω cm2 for Nd0.5Sr1.5Co0.75Mn0.25O3.86.
dc.description.departmentDepto. de Química Inorgánica
dc.description.facultyFac. de Ciencias Químicas
dc.description.refereedTRUE
dc.description.statuspub
dc.identifier.citationBoulahya, K., et al. «Structural and Microstructural Characterization and Properties of New Phases in the Nd–Sr–Co–(Fe/Mn)–O System as Air-Electrodes in SOFCs». Dalton Transactions, vol. 46, n.o 4, 2017, pp. 1283-89. https://doi.org/10.1039/C6DT03970G.
dc.identifier.doi10.1039/c6dt03970g
dc.identifier.officialurlhttps://doi.org/10.1039/C6DT03970G
dc.identifier.urihttps://hdl.handle.net/20.500.14352/94338
dc.journal.titleDalton Transactions
dc.language.isoeng
dc.page.final1289
dc.page.initial1283
dc.publisherRoyal Society of Chemistry
dc.rights.accessRightsmetadata only access
dc.subject.cdu546
dc.subject.ucmQuímica inorgánica (Química)
dc.subject.unesco23 Química
dc.titleStructural and microstructural characterization and properties of new phases in the Nd–Sr–Co–(Fe/Mn)–O system as air-electrodes in SOFCs
dc.typejournal article
dc.volume.number46
dspace.entity.typePublication
relation.isAuthorOfPublication99ecb771-49d1-4058-97c6-f59c25d8dbe7
relation.isAuthorOfPublication4b4d83e2-8876-4193-918b-bd57bde31fe6
relation.isAuthorOfPublication98a8a829-14c9-434f-ad6f-6bda80e85ba7
relation.isAuthorOfPublication.latestForDiscovery99ecb771-49d1-4058-97c6-f59c25d8dbe7
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