Open AccessDefect states in Ce0.85Nd(Gd)0.15O2-δ nano-crystals investigated by Raman spectroscopy
Author(s) -
N. Lazarević,
Z. DohčevićMitrović,
M. GrujićBrojčin,
M. Šćepanović,
Marko Radović,
Zoran V. Popović
Publication year - 2009
Publication title -
hemijska industrija
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.147
H-Index - 19
eISSN - 2217-7426
pISSN - 0367-598X
DOI - 10.2298/hemind0903221l
Subject(s) - raman spectroscopy , materials science , cerium , raman scattering , nanocrystal , stoichiometry , oxide , nano , spectroscopy , electrolyte , cerium oxide , analytical chemistry (journal) , nanotechnology , chemistry , metallurgy , optics , composite material , physics , electrode , quantum mechanics , chromatography
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