Transport and Structural Properties of Pure and Cr Doped Li3VO4 (Articolo in rivista)

Type
Label
  • Transport and Structural Properties of Pure and Cr Doped Li3VO4 (Articolo in rivista) (literal)
Anno
  • 2005-01-01T00:00:00+01:00 (literal)
Alternative label
  • Massarotti V., Capsoni D., Bini M., Mustarelli P., Chiodelli G., Azzoni C.B., Galinetto P., M.C. Mozzati (2005)
    Transport and Structural Properties of Pure and Cr Doped Li3VO4
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Massarotti V., Capsoni D., Bini M., Mustarelli P., Chiodelli G., Azzoni C.B., Galinetto P., M.C. Mozzati (literal)
Pagina inizio
  • 14845 (literal)
Pagina fine
  • 14851 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 109 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Titolo
  • Transport and Structural Properties of Pure and Cr Doped Li3VO4 (literal)
Abstract
  • This study deals with the effects of 5 and 10% chromium additions on the transport and structural properties of Li3VO4. The Cr substitution is easily obtained without impurity phases and does not affect the room- and high-temperature host crystal structure, as evidenced by X-ray powder diffraction and micro-Raman analysis. The EPR signals are interpreted in terms of quantified amounts of Cr ions in 5+ and 3+ valence states. Suitable 7Li and 51V MAS NMR spectra simulations agree with the EPR results about the relative amount of Cr5+ and Cr3+ ions substituted in V5+ and Li+ sites, respectively. The Cr3+ presence on Li site, also suggested by Raman results and Rietveld refinements, requires Li vacancies to maintain the charge neutrality. The p-type conductivity, suggested by the positive thermoelectric power coefficients, significantly increases by the cation doping up to an order of magnitude. (literal)
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