Structure,microstructureandionicconductivityofthesolidsolution LiTi2 xSnx(PO4)3

Veuillez utiliser cette adresse pour citer ce document : http://dspace.univ-bouira.dz:8080/jspui/handle/123456789/14608

Titre:	Structure,microstructureandionicconductivityofthesolidsolution LiTi2 xSnx(PO4)3
Auteur(s):	Benabbas, Abderrahim
Date de publication:	2011
Editeur:	Université akli mohand oulhadj Bouira
Référence bibliographique:	Elsevier
Résumé:	The NasiconcompoundswiththecompositionLiTi2 xSnx(PO4)3 (x¼0–1.8) weresynthesisedbythe solid statereaction.TheirstructuresweredeterminedfromX-raypowderdiffractionusingRietveld analysis.AllthecompositionspresentthespacegroupR-3c.TherefinementsshowthattheTiandSn cations arestatisticallydistributedoverthesamepositionwhiletheLionesareexclusivelylocatedon the M1site.Thelatticeconstants a and c exhibit linearvariationoverthewholecompositionrange.The bond lengthsareinaccordancewiththoseofotherNasiconstructures.TheSEMmicrographsofthe samplesshowrelativeporousmicrostructures.Theionicconductivityisabout10 4–10 5 S cm 1; for the activationenergy,atypicalvalueof0.32eVisobtainedfor x¼0.6 compositionwhereassignificant deviationfromlinearityinthetemperaturedependenceofthedcconductivity,isobservedfortheSn- rich ones.Thistendencyisdiscussedalongwiththestructuralfeatures
URI/URL:	http://dspace.univ-bouira.dz:8080/jspui/handle/123456789/14608
Collection(s) :	Articles

Fichier(s) constituant ce document :

Fichier	Description	Taille	Format
ArticleNedjemeddine.pdf	Structure,microstructureandionicconductivityofthesolidsolution LiTi2 xSnx(PO4)3	538,46 kB	Adobe PDF	Voir/Ouvrir