Large scale synthesis of nanostructured zirconia-based compounds from freeze-dried precursors
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Altres documents de l'autoria: Gómez, Andrés; Villanueva, Regina; Vie, D.; Murcia Mascaros, S.; Martínez, Eduardo; Beltrán, Aurelio; Sapiña, Fernando; Vicent Cabedo, Mónica; Sánchez-Vilches, Enrique
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Mostra el registre complet de l'elementcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/7033
comunitat-uji-handle3:10234/8618
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INVESTIGACIONMetadades
Títol
Large scale synthesis of nanostructured zirconia-based compounds from freeze-dried precursorsAutoria
Data de publicació
2013Editor
ElsevierISSN
0022-4596Cita bibliogràfica
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.Tipus de document
info:eu-repo/semantics/articleVersió de l'editorial
http://www.sciencedirect.com/science/article/pii/S0022459612004793#Versió
info:eu-repo/semantics/submittedVersionParaules clau / Matèries
Resum
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. [-]
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Journal of Solid State Chemistry (2013) vol. 197Drets d'accés
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