Large scale synthesis of nanostructured zirconia-based compounds from freeze-dried precursors
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Other documents of the author: 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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Show full item recordcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/7033
comunitat-uji-handle3:10234/8618
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Title
Large scale synthesis of nanostructured zirconia-based compounds from freeze-dried precursorsAuthor (s)
Date
2013Publisher
ElsevierISSN
0022-4596Bibliographic citation
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.Type
info:eu-repo/semantics/articlePublisher version
http://www.sciencedirect.com/science/article/pii/S0022459612004793#Version
info:eu-repo/semantics/submittedVersionSubject
Abstract
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. 197Rights
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