Large scale synthesis of nanostructured zirconia-based compounds from freeze-dried precursors
Ver/ Abrir
Impacto
Scholar |
Otros documentos de la autoría: Gómez, Andrés; Villanueva, Regina; Vie, D.; Murcia Mascaros, S.; Martínez, Eduardo; Beltrán, Aurelio; Sapiña, Fernando; Vicent Cabedo, Mónica; Sánchez-Vilches, Enrique
Metadatos
Mostrar el registro completo del ítemcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/7033
comunitat-uji-handle3:10234/8618
comunitat-uji-handle4:
INVESTIGACIONMetadatos
Título
Large scale synthesis of nanostructured zirconia-based compounds from freeze-dried precursorsAutoría
Fecha de publicación
2013Editor
ElsevierISSN
0022-4596Cita bibliográfica
GÓMEZ, A., et al. Large scale synthesis of nanostructured zirconia-based compounds from freeze-dried precursors. Journal of Solid State Chemistry, 2013, vol. 197, p. 120-127.Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
http://www.sciencedirect.com/science/article/pii/S0022459612004793#Versión
info:eu-repo/semantics/submittedVersionPalabras clave / Materias
Resumen
Nanocrystalline zirconia powders have been obtained at the multigram scale by thermal decomposition of precursors resulting from the freeze-drying of aqueous acetic solutions. This technique has equally made possible ... [+]
Nanocrystalline zirconia powders have been obtained at the multigram scale by thermal decomposition of precursors resulting from the freeze-drying of aqueous acetic solutions. This technique has equally made possible to synthesize a variety of nanostructured yttria or scandia doped zirconia compositions. SEM images, as well as the analysis of the XRD patterns, show the nanoparticulated character of those solids obtained at low temperature, with typical particle size in the 10–15 nm range when prepared at 673 K. The presence of the monoclinic, the tetragonal or both phases depends on the temperature of the thermal treatment, the doping concentration and the nature of the dopant. In addition, Rietveld refinement of the XRD profiles of selected samples allows detecting the coexistence of the tetragonal and the cubic phases for high doping concentration and high thermal treatment temperatures. Raman experiments suggest the presence of both phases also at relatively low treatment temperatures. [-]
Publicado en
Journal of Solid State Chemistry (2013) vol. 197Derechos de acceso
Aparece en las colecciones
- QUI_Articles [295]
- QUIO_Articles [686]