Ternary transition-metal fluoride precursors for the fluorolytic sol-gel route: new insights into speciation and decomposition

dc.contributor.authorKohl, Julia
dc.contributor.authorWiedemann, Dennis
dc.contributor.authorTroyanov, Sergej I.
dc.contributor.authorPalamidis, E.
dc.contributor.authorLerch, Martin
dc.date.accessioned2016-09-13T12:02:43Z
dc.date.available2016-09-13T12:02:43Z
dc.date.issued2015
dc.description.abstractThe nanoscaled ternary transition-metal fluorides Li3MF6 (M = V, Fe, Mn) and Li2NiF4 are promising candidates for cathode materials in high-voltage lithium-ion batteries. The fluorolytic route to these compounds relies on thermal decomposition of a hitherto uncharacterised precursor mixture produced from acetylacetonates and hydrofluoric acid. By addition of pyridine, different cationic, electroneutral and anionic complexes containing the motifs [MFn]((3-n)+) (n = 0-4) have been trapped and characterised by single-crystal X-ray diffraction and IR spectroscopy. Based on the results, a model of successive and incomplete fluorination is proposed for the speciation and formation of the precursor. The decomposition of the latter has been monitored via thermogravimetry (TG) and differential scanning calorimetry (DSC).en
dc.identifier.eissn1477-9234
dc.identifier.issn1477-9226
dc.identifier.pmid26126969
dc.identifier.urihttps://depositonce.tu-berlin.de/handle/11303/5891
dc.identifier.urihttp://dx.doi.org/10.14279/depositonce-5484
dc.language.isoen
dc.rights.urihttps://creativecommons.org/licenses/by/3.0/
dc.subject.ddc540 Chemie und zugeordnete Wissenschaftende
dc.titleTernary transition-metal fluoride precursors for the fluorolytic sol-gel route: new insights into speciation and decompositionen
dc.typeArticleen
dc.type.versionpublishedVersionen
dcterms.bibliographicCitation.doi10.1039/c5dt01748c
dcterms.bibliographicCitation.issue29
dcterms.bibliographicCitation.journaltitleDalton transactions : a journal of inorganic chemistry, including bioinorganic, organometallic, and solid-state chemistry / Royal Society of Chemistryen
dcterms.bibliographicCitation.originalpublishernameRoyal Society of Chemistryen
dcterms.bibliographicCitation.originalpublisherplaceCambridgeen
dcterms.bibliographicCitation.pageend13281
dcterms.bibliographicCitation.pagestart13272
dcterms.bibliographicCitation.volume44
tub.accessrights.dnbfree
tub.affiliationFak. 2 Mathematik und Naturwissenschaften::Inst. Chemie::FG Anorganische Chemie - Festkörper- und Materialchemiede
tub.affiliation.facultyFak. 2 Mathematik und Naturwissenschaftende
tub.affiliation.groupFG Anorganische Chemie - Festkörper- und Materialchemiede
tub.affiliation.instituteInst. Chemiede
tub.publisher.universityorinstitutionTechnische Universität Berlin

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