Artículo
Fe-doped ceria nanopowders synthesized by freeze-drying precursor method for electrocatalytic applications
Mazan, Mariano Osvaldo; Marrero Jerez, Jaasiel; Soldati, Analía Leticia
; Nuñez, Pedro; Larrondo, Susana Adelina
Fecha de publicación:
16/03/2015
Editorial:
Pergamon-Elsevier Science Ltd
Revista:
International Journal of Hydrogen Energy
ISSN:
0360-3199
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
In this work iron doped ceria nanoceramics were successfully synthesized through the freeze-drying method. All the solids were nanocrystalline. The incorporation of iron reduced the crystallite size with the corresponding increment of specific surface area,favoured the sintering of the solids that could be achieved at lower temperatures, increased the reduction percentage achieved in hydrogen flow and increased the amount and strength of basic sites. The lattice parameter showed a continuous decrease with the increment in iron content indicating that iron was incorporated into fluorite ceria structure at concentrations above the solubility limit. Finally, the incorporation of iron improved the conductivity and reduced the activation energy of the process. The higher reducibility, the presence of basic sites and the higher conductivity position iron doped ceria materials aspromising anodes for intermediate temperature SOFCs, operated with hydrocarbons.
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Articulos(CCT - PATAGONIA NORTE)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - PATAGONIA NORTE
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - PATAGONIA NORTE
Citación
Mazan, Mariano Osvaldo; Marrero Jerez, Jaasiel; Soldati, Analía Leticia; Nuñez, Pedro; Larrondo, Susana Adelina; Fe-doped ceria nanopowders synthesized by freeze-drying precursor method for electrocatalytic applications; Pergamon-Elsevier Science Ltd; International Journal of Hydrogen Energy; 40; 10; 16-3-2015; 3981-3989
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