Mostrar el registro sencillo del ítem
dc.contributor.author
Lopez, Carlos Alberto
dc.contributor.author
Pedregosa, Jose Carmelo
dc.contributor.author
Lamas, Diego Germán
dc.contributor.author
Alonso, José A.
dc.date.available
2018-01-03T18:47:45Z
dc.date.issued
2014-07
dc.identifier.citation
Lamas, Diego Germán; Pedregosa, Jose Carmelo; Lopez, Carlos Alberto; Alonso, José A.; The strongly defective double perovskite Sr11Mo4O23: Crystal structure in relation to ionic conductivity; IUCr Journals; Journal Of Applied Crystallography; 47; 7-2014; 1395-1401
dc.identifier.issn
0021-8898
dc.identifier.uri
http://hdl.handle.net/11336/32163
dc.description.abstract
The crystal structure and ionic conductivity properties of a novel microcrystalline Sr11Mo4O23 ceramic material are presented. This material has been prepared by thermal treatment up to 1473 K, in air, of previously decomposed citrate precursors. The complex crystal structure was refined from combined X-ray powder diffraction (XRPD) and neutron powder diffraction (NPD) data. The formula of this phase can be rewritten as Sr1.75&0.25SrMoO5.75, highlighting the relationship with double perovskites A2B0B00O6. At room temperature, the crystal structure is tetragonal in space group I41/a, with a = 11.6107 (6) A ˚ , c = 16.422 (1) A ˚ and V = 2213.822 (2) A ˚ 3. The crystal network contains O anion and Sr cation vacancies. The structure is complex, with Sr, Mo and O atoms distributed over four, two and six distinct Wyckoff sites, respectively. Only one of the Sr sites (SrO6) corresponds to the octahedral network; one of the two MoO6 types of octahedra is axially distorted. The three other Sr positions occupy the A site with higher coordination. There is an occupational deficit of O atoms of 22 (4)%. This defective framework material presents an interesting ionic mobility, enhanced above 773 Kowing to a further reduction in the oxygen content
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
IUCr Journals
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Sr11mo4o23
dc.subject
Synthesis
dc.subject
Structure
dc.subject
X-Ray Powder Diffraction
dc.subject
Neutron Powder Diffraction
dc.subject
Ionic Conductivity
dc.subject
Double Perovskite
dc.subject
Fuel Cells
dc.subject.classification
Otras Ciencias Químicas
dc.subject.classification
Ciencias Químicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
The strongly defective double perovskite Sr11Mo4O23: Crystal structure in relation to ionic conductivity
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-12-12T18:38:38Z
dc.journal.volume
47
dc.journal.pagination
1395-1401
dc.journal.pais
Reino Unido
dc.journal.ciudad
Londres
dc.conicet.avisoEditorial
Author(s) of this paper may load this reprint on their own web site or institutional repository provided that this cover page is retained. Republication of this article or its storage in electronic databases other than as specified above is not permitted without prior permission in writing from the IUCr.
dc.description.fil
Fil: Lopez, Carlos Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Investigaciones en Tecnología Química. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Investigaciones en Tecnología Química; Argentina
dc.description.fil
Fil: Pedregosa, Jose Carmelo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Investigaciones en Tecnología Química. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Investigaciones en Tecnología Química; Argentina
dc.description.fil
Fil: Lamas, Diego Germán. Universidad Nacional del Comahue; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Alonso, José A.. Instituto de Ciencia de Materiales de Madrid; España
dc.journal.title
Journal Of Applied Crystallography
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1107/S1600576714013491
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://scripts.iucr.org/cgi-bin/paper?S1600576714013491
Archivos asociados