Solid-state and surface spectroscopic characterization of BaTiO3 fine powders (Articolo in rivista)

Type
Label
  • Solid-state and surface spectroscopic characterization of BaTiO3 fine powders (Articolo in rivista) (literal)
Anno
  • 1994-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1021/cm00043a016 (literal)
Alternative label
  • Busca G.; Buscaglia V.; Leoni M.; Nanni P. (1994)
    Solid-state and surface spectroscopic characterization of BaTiO3 fine powders
    in Chemistry of materials; ACS, American chemical society, Washington, DC (Stati Uniti d'America)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Busca G.; Buscaglia V.; Leoni M.; Nanni P. (literal)
Pagina inizio
  • 955 (literal)
Pagina fine
  • 961 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://pubs.acs.org/doi/abs/10.1021/cm00043a016 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 6 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
  • Scopu (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Istituto di Chimica, Facoltà di Ingegneria, Università, P. le Kennedy, I-16129 Genova, Italy Istituto di Chimica Fisica Applicata dei Materiali, CNR, Area della Ricerca, via de Marini 6, I-16149 Genova, Italy (literal)
Titolo
  • Solid-state and surface spectroscopic characterization of BaTiO3 fine powders (literal)
Abstract
  • The bulk and surface structure of two BaTiO3 powders has been investigated by FT-IR and FT-Raman spectroscopies. A high-area sample (39 m2/g), produced by a hydrothermal method, cubic to XRD, appears to have lower symmetry to Raman spectroscopy, with unit-cell distortions similar to those of tetragonal ferroelectric BaTiO3. It contains BaCO3 impurities, leading to a bulk Ba/Ti ratio lower than 1, as also evidenced by Raman spectra. Bulk hydroxy groups are evident, possibly needed to balance such a charge defect. Calcination at 1223 K causes the disappearance of these impurities and converts this material in the usual tetragonal phase. The surface properties of both powders, investigated through water and pyridine adsorption, are similar and appear to be dominated by Ba2+ ions, so leading to a solid characterized by extremely weak Lewis acidity. An interpretation for the solid-state behavior of the starting powder is proposed. (literal)
Editore
Prodotto di
Autore CNR

Incoming links:


Prodotto
Autore CNR di
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi
Editore di
data.CNR.it