Local Environment of Yttrium in Y-doped Barium Cerate compounds (Articolo in rivista)

Type
Label
  • Local Environment of Yttrium in Y-doped Barium Cerate compounds (Articolo in rivista) (literal)
Anno
  • 2006-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1021/cm0615018 (literal)
Alternative label
  • A. Longo, F. Giannici, A. Balerna, C. Ingrao, A. Martorana (2006)
    Local Environment of Yttrium in Y-doped Barium Cerate compounds
    in Chemistry of materials
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • A. Longo, F. Giannici, A. Balerna, C. Ingrao, A. Martorana (literal)
Pagina inizio
  • 5782 (literal)
Pagina fine
  • 5788 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 18 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • ISMN-CNR (literal)
Titolo
  • Local Environment of Yttrium in Y-doped Barium Cerate compounds (literal)
Abstract
  • The local structure of yttrium in Y-doped BaCeO3 compounds was studied using X-ray absorption spectroscopy (XAS) at the Y K-edge. Data analysis shows that the local environment of Y3+ changes, resulting in a distorted octahedron. The structural distortion found does not depend on the dopant amount at the investigated compositions, but on the level of hydration, as clearly demonstrated by the distortion increase in the BaCe0.9Y0.1O3-ä sample after the treatment in O2/H2O. In situ measurements performed in O2/H2O flux, which show that the distortion is retained at 753 K, are also reported. The observed significative structural changes seem to point out a preferential insertion of the hydroxyls around the dopant in the Y-doped BaCeO3 compounds. (literal)
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