Mostrar el registro sencillo del ítem

Thermal behavior of the layered oxide Li2/3Co2/3Mn1/3O2 obtained by ion exchange from the P2-type Na2/3Co2/3Mn1/3O2 phase

hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorKOMABA, S.
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorCROGUENNEC, Laurence
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorTOURNADRE, Frédéric
hal.structure.identifierCentre National d'Études Spatiales [Toulouse] [CNES]
dc.contributor.authorWILLMANN, Patrick
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorDELMAS, Claude
dc.date.issued2013
dc.identifier.issn1932-7447
dc.description.abstractEnThermal evolution of the layered oxide Li2/3Co2/3Mn1/3O2, showing a T#2 stacking and prepared by a Na/Li ion exchange in P2-Na2/3Co2/3Mn1/3O2, was investigated by thermal analyses and X-ray diffraction. A thermal expansion of the T#2 orthorhombic unit cell is observed from 25 to 350 °C; from 350 °C the T#2 stacking is destabilized to the benefit of an O6-type stacking obtained from the former through slab gliding. The T#2 to O6 phase transformation is allowed to occur from a stacking with larger interlayer distances and the lithium ions in tetrahedral sites to a stacking with smaller interlayer distances and the lithium ions in octahedral sites. This phase transition from T#2 to O6 is reversible, even though its kinetic can be very slow: the thermal treatment of the T#2-type Li2/3Co2/3Mn1/3O2 phase at 450 °C with a quenching in air has shown to stabilize the O6HT-Li2/3Co2/3Mn1/3O2 phase. At temperatures higher than 450 °C, the layered oxide Li2/3Co2/3Mn1/3O2 is gradually decomposed into Li2MnO3 and Co3O4. First electrochemical tests performed in lithium batteries have revealed that O6HT-Li2/3Co2/3Mn1/3O2 delivers as positive electrode material a high reversible capacity of 230 mAh*g-1 over two voltage domains around 3 and 4 V vs Li+/Li.
dc.language.isoen
dc.publisherAmerican Chemical Society
dc.subject.enLamellar compounds
dc.subject.enOxides
dc.subject.enIon exchange
dc.subject.enCrystallography
dc.subject.enThermal properties
dc.title.enThermal behavior of the layered oxide Li2/3Co2/3Mn1/3O2 obtained by ion exchange from the P2-type Na2/3Co2/3Mn1/3O2 phase
dc.typeArticle de revue
dc.identifier.doi10.1021/jp310417q
dc.subject.halChimie/Matériaux
dc.subject.halChimie/Chimie inorganique
bordeaux.journalJournal of Physical Chemistry C
bordeaux.page3264-3271
bordeaux.volume117
bordeaux.issue7
bordeaux.peerReviewedoui
hal.identifierhal-00812477
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00812477v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Journal%20of%20Physical%20Chemistry%20C&rft.date=2013&rft.volume=117&rft.issue=7&rft.spage=3264-3271&rft.epage=3264-3271&rft.eissn=1932-7447&rft.issn=1932-7447&rft.au=KOMABA,%20S.&CROGUENNEC,%20Laurence&TOURNADRE,%20Fr%C3%A9d%C3%A9ric&WILLMANN,%20Patrick&DELMAS,%20Claude&rft.genre=article


Archivos en el ítem

ArchivosTamañoFormatoVer

No hay archivos asociados a este ítem.

Este ítem aparece en la(s) siguiente(s) colección(ones)

Mostrar el registro sencillo del ítem