Pair distribution function analysis and Mossbauer study of defects in microwave-hydrothermal LiFePO4 (Articolo in rivista)

Type
Label
  • Pair distribution function analysis and Mossbauer study of defects in microwave-hydrothermal LiFePO4 (Articolo in rivista) (literal)
Anno
  • 2012-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1039/C1RA00525A (literal)
Alternative label
  • Marcella Bini (a); Stefania Ferrari (a); Doretta Capsoni (a); Piercarlo Mustarelli (a); Gabriele Spina (b); Franco Del Giallo (c); Marco Lantieri (c); Cristina Leonelli (d); Antonino Rizzuti (e); Vincenzo Massarotti (a) (2012)
    Pair distribution function analysis and Mossbauer study of defects in microwave-hydrothermal LiFePO4
    in RSC advances
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Marcella Bini (a); Stefania Ferrari (a); Doretta Capsoni (a); Piercarlo Mustarelli (a); Gabriele Spina (b); Franco Del Giallo (c); Marco Lantieri (c); Cristina Leonelli (d); Antonino Rizzuti (e); Vincenzo Massarotti (a) (literal)
Pagina inizio
  • 250 (literal)
Pagina fine
  • 258 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://pubs.rsc.org/en/Content/ArticleLanding/2012/RA/c1ra00525a#!divAbstract (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 2 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 1 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • (a) Dipartimento di Chimica, Sezione di Chimica Fisica, Università di Pavia, Viale Taramelli 16 (b) Dipartimento di Fisica ed Astronomia, Università di Firenze, Via Sansone 1, Italy (c) Istituto dei Sistemi Complessi - CNR, Via Madonna del Piano 10, Italy (d) Dipartimento di Ingegneria dei Materiali e dell'Ambiente, Università di Modena e Reggio Emilia, Via Vignolese 905 (e) Dipartimento di Ingegneria delle Acque e di Chimica, Politecnico di Bari, Via Orabona 4, Italy (literal)
Titolo
  • Pair distribution function analysis and Mossbauer study of defects in microwave-hydrothermal LiFePO4 (literal)
Abstract
  • Olivine-type LiFePO4 is nowadays one of the most important cathode materials of choice for high-energy lithium ion batteries. Its intrinsic defectivity, and chiefly the so-called lithium ironanti-site, is one of the most critical issues when envisaging electrochemical applications. This paper reports a combined diffractometric (Synchrotron Radiation XRD with Rietveld and PDF analyses) and spectroscopic (Mössbauer) approach able to give a thorough characterization of the material defectivity. Such analytical procedure has been applied to a sample prepared following an innovative microwave-assisted hydrothermal synthesis route that, in a few minutes, allowed us to obtain a well crystallized material. PDF analysis, which is applied for the first time to this type of battery material, reveals the presence of disorder possibly due to Li/Fe exchange or to a local symmetry lowering. A 5% amount of iron on the lithium site has been detected both by PDF as well as by Mössbauer spectroscopy, which revealed a small percentage of Fe3+ on the regular sites. (literal)
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