Movilidad de oxígeno en conductores iónicos A_(2)Ti_(2y)Zr_(y)O_(7) (A: Y, Gd)
| dc.contributor.author | Moreno, K. J. | |
| dc.contributor.author | Mendoza-Suárez, G. | |
| dc.contributor.author | Fuentes, A. F. | |
| dc.contributor.author | Garcia Barriocanal, Javier | |
| dc.contributor.author | León Yebra, Carlos | |
| dc.contributor.author | Santamaría Sánchez-Barriga, Jacobo | |
| dc.date.accessioned | 2023-06-20T10:54:30Z | |
| dc.date.available | 2023-06-20T10:54:30Z | |
| dc.date.issued | 2004-07 | |
| dc.description | © Sociedad Española de Cerámica y Vidrio. Los autores del CINVESTAV-IPN agradecen a CONACYT el apoyo económico prestado para la realización de este trabajo (Proyecto 31198U). K. J. Moreno agradece al CINVESTAV-IPN el apoyo económico concedido para su estancia en la Universidad Complutense. Los autores de la Universidad Complutense agradecen el apoyo económico del MCYT (MAT 2001-3713-C04). | |
| dc.description.abstract | Presentamos un estudio de la conductividad iónica en las series Y_(2)Ti_(2-y)Zr_(y)O_(7) y Gd_(2)Ti_(2-y)Zr_(y)O_(7) (0≤y≤2) obtenidas por síntesis mecanoquímica. Se presenta un estudio de la dinámica de iones oxígeno en estos materiales mediante la técnica de Espectroscopia de Admitancias. La variación con el contenido en Zr de la conductividad dc y de su energía de activación se interpreta en términos del aumento tanto del número de vacantes de oxígeno como del desorden en la estructura al aumentar el contenido en Zr. | |
| dc.description.abstract | We report a study of ionic conductivity in the series Y_(2)Ti_(2-y)Zr_(y)O_(7) and Gd_(2)Ti_(2-y)Zr_(y)O_(7) (0≤y≤2) obtained by mechanochemical synthesis. We present a study of oxygen ion dynamics in these materials by Impedance Spectroscopy. The change in dc conductivity and activation energy with Zr content is interpreted in terms of the increase in the number of oxygen vacancies and of structural disorder when increasing Zr content. | |
| dc.description.department | Depto. de Estructura de la Materia, Física Térmica y Electrónica | |
| dc.description.faculty | Fac. de Ciencias Físicas | |
| dc.description.refereed | TRUE | |
| dc.description.sponsorship | CONACYT | |
| dc.description.sponsorship | CINVESTAV-IPN | |
| dc.description.sponsorship | MCYT | |
| dc.description.status | pub | |
| dc.eprint.id | https://eprints.ucm.es/id/eprint/30674 | |
| dc.identifier.issn | 0366-3175 | |
| dc.identifier.officialurl | http://boletines.secv.es/upload/20070322133126.43[4]759-763.pdf | |
| dc.identifier.relatedurl | http://boletines.secv.es/ | |
| dc.identifier.uri | https://hdl.handle.net/20.500.14352/51430 | |
| dc.issue.number | 4 | |
| dc.journal.title | Boletín de la Sociedad Española de Cerámica y Vidrio | |
| dc.language.iso | spa | |
| dc.page.final | 763 | |
| dc.page.initial | 759 | |
| dc.publisher | Sociedad Española de Cerámica y Vidrio | |
| dc.relation.projectID | 31198U | |
| dc.relation.projectID | MAT 2001-3713-C04 | |
| dc.rights | Atribución 3.0 España | |
| dc.rights.accessRights | open access | |
| dc.rights.uri | https://creativecommons.org/licenses/by/3.0/es/ | |
| dc.subject.cdu | 537 | |
| dc.subject.keyword | Electronic conduction | |
| dc.subject.keyword | Pyrochlore | |
| dc.subject.keyword | Diffusion | |
| dc.subject.keyword | Disorder | |
| dc.subject.keyword | Fluorite | |
| dc.subject.keyword | Oxides. | |
| dc.subject.ucm | Electricidad | |
| dc.subject.ucm | Electrónica (Física) | |
| dc.subject.unesco | 2202.03 Electricidad | |
| dc.title | Movilidad de oxígeno en conductores iónicos A_(2)Ti_(2y)Zr_(y)O_(7) (A: Y, Gd) | |
| dc.title.alternative | Oxygen mobility in A_(2)Ti_(2y)Zr_(y)O_(7) (A: Y, Gd) ionic conductors | |
| dc.type | journal article | |
| dc.volume.number | 43 | |
| dcterms.references | 1. J. B. Goodenough, “Oxide-ion Conductors by Design”, Nature (London), 404 821-823 (2000). 2. A. V. Chadwick, “Solid Progress in Ion Conduction”, Nature (London), 408 925-926 (2000). 3. P. K. Moon, H. L. Tuller, “Ionic Conduction in the Gd_(2)Ti_(2)O_(7)-Gd_(2)Zr_(2)O_(7) System”, Solid State Ion, 28-30, 470-474 (1988). 4. J. Lian, L. M. Wang, S. X. Wang, J. Chen, L. A. Boatner, R. C. Ewing, “Nanoscale Manipulation of Pyrochlore: New Nanocomposite Ionic Conductors”, Phys. Rev. Lett., 87, 145901 (2001). 5. H. L. Tuller, “Mixed Ionic-Electronic Conduction in a Number of Fluorite and Pyrochlore Compounds”, Solid State Ion, 52, 135-146 (1992). 6. B. J. Wuensch, K. W. Eberman, C. Heremans, E. M. Ku, P. Onnerud, E. M. E. Yeo, S. M. Haile, J. K. Stalick, J. D. Jorgensen, “Connection between Oxygenion Conductivity of Pyrochlore Fuel-Cell Materials and Structural Change with Composition and Temperature”, Solid State Ion, 129, 111-133 (2000). 7. A. J. Burggraaf, T. Van Dijk, M. J. Verkerk, “Structure and Conductivity of Pyrochlore and Fluorite Type Solid Solutions”, Solid State Ion, 5, 519-522 (1981). 8. P. J. Wilde, C. R. A. Catlow, “Defects and Diffusion in Pyrochlore Structured Oxides”, Solid State Ion, 112, 173-184 (1998). 9. P. J. Wilde, C. R. A. Catlow, “Molecular Dynamics Study of the Effect of Doping and Disorder on Diffusion in Gadolinium Zirconate”, Solid State Ion, 112, 185-195 (1998). 10. J. Chen, J. Lian, L. M. Wang, R. C. Ewing, R. G. Wang, W. Pan, “X-ray Photoelectron Spectroscopy Study of Disordering in Gd_(2)(Ti_(1-x)Zr_(x))_(2)O_(7) Pyrochlores”, Phys. Rev. Lett., 88, 105901 (2002). 11. A. K. Jonscher, en Dielectric Relaxation in Solids (Chelsea Dielectric, London) 1983. 12. P. B. Macedo, C. T. Moyniham, R. Bose, “The Role of Ionic Diffusion in Polarisation in Vitreous Ionic Conductors”, Phys. Chem. Glasses, 13, 171 (1972). 13. R. Kohlrausch, “Nachtrag Über die Elastische Nachwirkung beim Cocon und Glasladen”, Pogg Ann. Physik, 72, 353-405 (1847). 14. K. Funke, “Jump Relaxation Model and Coupling Model - A Comparison”, J. Non-Crystalline Solids, 172-174, 1215-1221 (1994). 15. K. L. Ngai, “Analysis of NMR and Conductivity-Relaxation Measurements in Glassy Li2S-SiS2 Fast-Ion Conductors”, Phys. Rev. B, 48, 13481-13485 (1993). 16. H. L. Tuller, ”Semiconduction and Mixed Ionic-Electronic Conduction in Nonstoichiometric Oxides: Impact and Control”, Solid State Ion, 94, 63-74 (1997). 17. S. Kramer, M. Spears, H. L. Tuller, “Conduction in Titanate Pyrochlores: Role of Dopants”, Solid State Ion, 72, 59 (1994). 18. C. Heremans, B. J. Wuensch, J. K. Stalick, E. Prince, “Fast-Ion Conducting Y_(2)(Zr_(y)Ti_(1-y))O_(7) Pyrochlores: Neutron Rietveld Analysis of Disorder Induced by Zr ubstitution”, J. Solid State Chem., 117, 108-121 (1995). | |
| dspace.entity.type | Publication | |
| relation.isAuthorOfPublication | 213f0e33-39f1-4f27-a134-440d5d16a07c | |
| relation.isAuthorOfPublication | 75fafcfc-6c46-44ea-b87a-52152436d1f7 | |
| relation.isAuthorOfPublication.latestForDiscovery | 213f0e33-39f1-4f27-a134-440d5d16a07c |
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