Self-Assembling of Er2O3–TiO2 Mixed Oxide Nanoplatelets by a Template-Free Solvothermal Route
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Scholar |
Altres documents de l'autoria: Julian-Lopez, Beatriz; Martos Macián, Mónica; Ulldemolins, Natalia; Odriozola, José A.; Cordoncillo, Eloisa; Escribano López, Purificación
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Mostra el registre complet de l'elementcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/7053
comunitat-uji-handle3:10234/8639
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http://dx.doi.org/10.1002/chem.200901423 |
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Títol
Self-Assembling of Er2O3–TiO2 Mixed Oxide Nanoplatelets by a Template-Free Solvothermal RouteAutoria
Data de publicació
2009Editor
WileyISSN
0947-6539Tipus de document
info:eu-repo/semantics/articleVersió de l'editorial
http://onlinelibrary.wiley.com/doi/10.1002/chem.200901423/abstractParaules clau / Matèries
Resum
An easy solvothermal route has been developed to synthesize the first mesoporous Er2O3–TiO2 mixed oxide spherical particles composed of crystalline nanoplatelets, with high surface area and narrow pore size distribution. ... [+]
An easy solvothermal route has been developed to synthesize the first mesoporous Er2O3–TiO2 mixed oxide spherical particles composed of crystalline nanoplatelets, with high surface area and narrow pore size distribution. This synthetic strategy allows the preparation of materials at low temperature with interesting textural properties without the use of surfactants, as well as the control of particle size and shape. TEM and Raman analysis confirm the formation of nanocrystalline Er2O3–TiO2 mixed oxide. Mesoscopic ordered porosity is reached through the thermal decomposition of organic moieties during the synthetic process, thus leading to a template-free methodology that can be extended to other nanostructured materials. High specific surface areas (up to 313 m2 g−1) and narrow pore size distributions are achieved in comparison to the micrometric material synthesized by the traditional sol–gel route. This study opens new perspectives in the development, by solvothermal methodologies, of multifunctional materials for advanced applications by improving the classical pyrochlore properties (magnetization, heat capacity, catalysis, conductivity, etc.). In particular, since catalytic reactions take place on the surface of catalysts, the high surface area of these materials makes them promising candidates for catalysts. Furthermore, their spherical morphology makes them appropriate for advanced technologies in, for instance, ceramic inkjet printers. [-]
Publicat a
Chemistry - A European Journal, 15, 45, p. 12426–12434Drets d'accés
Copyright © 2009 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
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