Paper Title:
Lattice Parameters of Gd-Doped Ceria Electrolytes
  Abstract

This paper deals with Gd-doped ceria solid solutions: Ce1−XGdXO2−d with "x" ranging from 0 to 0.2. Four different powders were synthesized by modified glycine nitrate procedure with very precise stoichiometry according to tailored composition. The method was modified by decreasing glycine/nitrate ratio to 0.5. All obtained solid solutions exhibit a fluorite-type crystal structure with composition dependent lattice parameters. The variation of the lattice parameter was studied and correlated with the equation describing the ion-packing model. It has been found that the change of lattice parameter versus Gd concentration obeys Vegard's rule very well. Results also show that all powders are nanometric in size. The average size of Ce1−XGdXO2−d particles is about 20 nm.

  Info
Periodical
Edited by
Dragan P. Uskokovic, Slobodan K. Milonjic, Djan I. Rakovic
Pages
175-180
DOI
10.4028/www.scientific.net/MSF.494.175
Citation
B. Matović, S. Bošković, L. Živković, M.D. Vlajić, V. D. Krstić, "Lattice Parameters of Gd-Doped Ceria Electrolytes", Materials Science Forum, Vol. 494, pp. 175-180, 2005
Online since
September 2005
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$32.00
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