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Structure and reversible lithium intercalation in a new P′3-phase: Na2/3Mn1−yFeyO2 (y = 0, 1/3, 2/3)
hal.structure.identifier | Institute of General and Inorganic Chemistry | |
hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
dc.contributor.author | YONCHEVA, Meglena | |
hal.structure.identifier | Institute of General and Inorganic Chemistry | |
hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
dc.contributor.author | STOYANOVA, Radostina | |
hal.structure.identifier | Institute of General and Inorganic Chemistry | |
dc.contributor.author | ZHECHEVA, Ekaterina | |
hal.structure.identifier | Institute of General and Inorganic Chemistry | |
dc.contributor.author | KUZMANOVA, Elitza | |
hal.structure.identifier | Central Laboratory of Solar Energy and New Energy Sources [CL SENES] | |
dc.contributor.author | SENDOVA-VASSILEVA, Marushka | |
hal.structure.identifier | Institute of General and Inorganic Chemistry | |
hal.structure.identifier | Institute of Mineralogy and Crystallography | |
dc.contributor.author | NIHTIANOVA, Diana | |
hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
dc.contributor.author | CARLIER-LARREGARAY, Dany | |
hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
dc.contributor.author | GUIGNARD, Marie | |
hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
dc.contributor.author | DELMAS, Claude | |
dc.date.issued | 2012 | |
dc.identifier.issn | 0959-9428 | |
dc.description.abstractEn | In this contribution, new data on the reversible Li+ intercalation in iron substituted sodium manganates are provided. Novel Na2/3Mn1−yFeyO2 (y = 0, 1/3 and 2/3) compounds with a P′3-type structure are prepared from freeze-dried citrate precursors at 500 °C. A new structural element is the development of three-layer oxygen stacking contrary to the well-known P2-type Na2/3MnO2 with a two-layer sequence. The effect of Fe additives on the structure of Na2/3MnO2 was examined by XRD powder diffraction and TEM analysis. The oxidation state and the distribution of transition metal ions in Na2/3Mn1−yFeyO2 were analysed using electron paramagnetic resonance spectroscopy. The lithium intercalation in Na2/3Mn1−yFeyO2 was investigated in two-electrode lithium cells of the type Li|LiPF6 (EC:DMC)|Na2/3Mn1−yFeyO2. The stability of the layered phases during lithium intercalation was studied by ex situ Raman spectroscopy. It was found that the intermediate Na2/3Mn2/3Fe1/3O2 composition is able to intercalate Li+ reversibly in high amounts. Details of the structure and its stability during the Li+ intercalation are discussed. | |
dc.language.iso | en | |
dc.publisher | Royal Society of Chemistry | |
dc.title.en | Structure and reversible lithium intercalation in a new P′3-phase: Na2/3Mn1−yFeyO2 (y = 0, 1/3, 2/3) | |
dc.type | Article de revue | |
dc.identifier.doi | 10.1039/C2JM35203F | |
dc.subject.hal | Chimie/Matériaux | |
bordeaux.journal | Journal of Materials Chemistry | |
bordeaux.page | 23418-23427 | |
bordeaux.volume | 22 | |
bordeaux.issue | 44 | |
bordeaux.peerReviewed | oui | |
hal.identifier | hal-00772975 | |
hal.version | 1 | |
hal.popular | non | |
hal.audience | Internationale | |
dc.subject.it | Reversible Li+ intercalation | |
dc.subject.it | Iron | |
dc.subject.it | Substitution | |
dc.subject.it | Sodium manganates | |
hal.origin.link | https://hal.archives-ouvertes.fr//hal-00772975v1 | |
bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Journal%20of%20Materials%20Chemistry&rft.date=2012&rft.volume=22&rft.issue=44&rft.spage=23418-23427&rft.epage=23418-23427&rft.eissn=0959-9428&rft.issn=0959-9428&rft.au=YONCHEVA,%20Meglena&STOYANOVA,%20Radostina&ZHECHEVA,%20Ekaterina&KUZMANOVA,%20Elitza&SENDOVA-VASSILEVA,%20Marushka&rft.genre=article |
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