Effect of the (Nd,Dy)-Double Doping on the Structural Properties of Ceria
AbstractThe crystallographic properties of the Ce1−x(Nd0.63Dy0.37)xO2−x/2 system (0 ≤ x ≤ 0.6) were studied by means of synchrotron powder X-ray diffraction and compared to the ones of Sm-doped ceria. The aim of this work was to investigate the effect of substituting Sm3+ by a mixture of a smaller and a larger ion that ensures a more pronounced Ce4+/dopant size mismatch while having the same average ionic size as Sm3+. Two main findings came to light: (a) the compositional region of the CeO2-based solid solution widens up to x ranging between 0.4 and 0.5, and (b) the cell parameter is larger than the one of Sm-doped ceria at each composition. Both effects are expected to play a significant role on the ionic conductivity of the material. The results are discussed in terms of disorder and cation-vacancy association. View Full-Text
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Artini, C.; Gigli, L.; Carnasciali, M.M.; Pani, M. Effect of the (Nd,Dy)-Double Doping on the Structural Properties of Ceria. Inorganics 2019, 7, 94.
Artini C, Gigli L, Carnasciali MM, Pani M. Effect of the (Nd,Dy)-Double Doping on the Structural Properties of Ceria. Inorganics. 2019; 7(8):94.Chicago/Turabian Style
Artini, Cristina; Gigli, Lara; Carnasciali, Maria M.; Pani, Marcella. 2019. "Effect of the (Nd,Dy)-Double Doping on the Structural Properties of Ceria." Inorganics 7, no. 8: 94.
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