Hemijska Industrija (Jan 2009)

Defect states in Ce0.85Nd(Gd)0.15O2-δ nano-crystals investigated by Raman spectroscopy

  • Lazarević Nenad Ž.,
  • Dohčević-Mitrović Zorana D.,
  • Grujić-Brojčin Mirjana U.,
  • Šćepanović Maja J.,
  • Radović Marko B.,
  • Popović Zoran V.

DOI
https://doi.org/10.2298/HEMIND0903221L
Journal volume & issue
Vol. 63, no. 3
pp. 221 – 226

Abstract

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Defect structures related to the intrinsic and extrinsic oxygen vacancies in Ce0.85Nd(Gd)0.15O2-δ nanocrystals were studied by Raman scattering spectroscopy during the temperature treatment. It was observed that the agglomeration effect has major contribution to the stoichiometry of Ce0.85Nd(Gd)0.15O2-δ, namely the change of surface to volume ratio in nanocrystals has significant influence on the concentration and type of defect formed structures. Investigation of these structures is very important from the aspect of application of doped cerium dioxide as an electrolyte in solid oxide fuel cells.

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