dc.creator | García-García, Francisco J. | es |
dc.creator | Sayagués de Vega, María Jesús | es |
dc.creator | Gotor Martínez, Francisco José | es |
dc.date.accessioned | 2021-05-06T14:45:46Z | |
dc.date.available | 2021-05-06T14:45:46Z | |
dc.date.issued | 2021-02 | |
dc.identifier.citation | García-García, F.J., Sayagués de Vega, M.J. y Gotor Martínez, F.J. (2021). A Novel, Simple and Highly Efficient Route to Obtain PrBaMn2O5+δ Double Perovskite: Mechanochemical Synthesis. Nanomaterials, 11 (2). Article number 380. | |
dc.identifier.issn | EISSN 2079-4991 | es |
dc.identifier.uri | https://hdl.handle.net/11441/108670 | |
dc.description.abstract | In this work, a mechanochemical route was proposed for the synthesis of the PrBaMn2O5+
(PMBO) double layered perovskite phase. The mechanochemical reaction between Pr6O11, BaO2, and
MnO powders with cationic stoichiometric ratios of 1/1/2 for Pr/Ba/Mn was performed using highenergy
milling conditions in air. After 150 min of milling, a new phase with perovskite structure and
cubic symmetry consistent with the A-site disordered Pr0.5Ba0.5MnO3 phase was formed. When this
new phase was subsequently annealed at a high temperature in an inert Ar atmosphere, the layered
PrBaMn2O5+ phase was obtained without needing to use a reducing atmosphere. At 1100 C, the
fully reduced layered PrBaMn2O5 phase was achieved. A weight gain was observed in the 200–300 C
temperature range when this fully reduced phase was annealed in air, which was consistent with the
transformation into the fully oxidized PrBaMn2O6 phase. The microstructural characterization by
SEM, TEM, and HRTEM ascertained the formation of the intended PrBaMn2O5+ phase. Electrical
characterization shows very high electrical conductivity of layered PBMO in a reducing atmosphere
and suitable in an oxidizing atmosphere, becoming, therefore, excellent candidates as solid oxide
fuel cell (SOFC electrodes). | es |
dc.description.sponsorship | Unión Europea FEDER 2014-2020 | es |
dc.description.sponsorship | Consejería de Economía y Conocimiento de la Junta de Andalucía | es |
dc.format | application/pdf | es |
dc.format.extent | 16 p. | es |
dc.language.iso | eng | es |
dc.publisher | MDPI | es |
dc.relation.ispartof | Nanomaterials, 11 (2). Article number 380. | |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.subject | SOFCs | es |
dc.subject | Mechanochemistry | es |
dc.subject | Layered double perovskites | es |
dc.subject | Sinterability | es |
dc.subject | Electrical conductivity | es |
dc.title | A Novel, Simple and Highly Efficient Route to Obtain PrBaMn2O5+δ Double Perovskite: Mechanochemical Synthesis | es |
dc.type | info:eu-repo/semantics/article | es |
dc.type.version | info:eu-repo/semantics/publishedVersion | es |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es |
dc.contributor.affiliation | Universidad de Sevilla. Departamento de Ingeniería y Ciencia de los Materiales y del Transporte | es |
dc.relation.projectID | FEDER 2014-2020 | es |
dc.relation.projectID | US-15382 | es |
dc.relation.publisherversion | https://doi.org/10.3390/nano11020380 | es |
dc.identifier.doi | 10.3390/nano11020380 | es |
dc.journaltitle | Nanomaterials | es |
dc.publication.volumen | 11 | es |
dc.publication.issue | 2 | es |
dc.publication.initialPage | Article number 380 | es |
dc.contributor.funder | European Commission (EC). Fondo Europeo de Desarrollo Regional (FEDER) | es |
dc.contributor.funder | Junta de Andalucía | es |