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Magnetic properties and vanadium oxidation state in α-Li<inf>3</inf>V<inf>2</inf>(PO<inf>4</inf>)<inf>3</inf>/C composite: Magnetization and ESR measurements

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dc.contributor.author Gavrilova T.P.
dc.contributor.author Khantimerov S.M.
dc.contributor.author Fatykhov R.R.
dc.contributor.author Yatsyk I.V.
dc.contributor.author Cherosov M.A.
dc.contributor.author Lee H.S.
dc.contributor.author Vishwanathan R.
dc.contributor.author Saravanan K.
dc.contributor.author Suleimanov N.M.
dc.date.accessioned 2022-02-09T20:32:10Z
dc.date.available 2022-02-09T20:32:10Z
dc.date.issued 2021
dc.identifier.issn 0038-1098
dc.identifier.uri https://dspace.kpfu.ru/xmlui/handle/net/168829
dc.description.abstract Here we present the magnetization and electron spin resonance (ESR) measurements of α-Li3V2(PO4)3/C composite, which can be potentially used as a cathode material in a lithium ion battery. Magnetization measurements of α-Li3V2(PO4)3/C indicate that the investigated sample is in paramagnetic state and exhibits Curie-Weiss like behavior above T = 50K. The negative value of the Curie-Weiss temperature θCW = −22 K suggests the presence of the antiferromagnetic interactions between magnetic spins of V3+ ions (3 d2, S = 1). At the same time, the presence of the magnetic phase transition was not observed in the investigated temperature range from 2 K up to room temperature. The nonlinear behavior of the field dependence of the magnetization was observed only at T = 2 K suggesting the possible magnetic ordering below this temperature. ESR measurements were performed both for as-prepared α-Li3V2(PO4)3/C composite and for α-Li3V2(PO4)3/C sample after Li deintercalation and intercalation processes. The complete reduction of vanadium ions to the initial valence state V3+ after the first charge/discharge cycle was determined indicating the reversible intercalation of all lithium ions to the structure during the first delithiation/lithiation cycle in the investigated α-Li3V2(PO4)3/C composite.
dc.relation.ispartofseries Solid State Communications
dc.subject Cathode material
dc.subject Electron spin resonance
dc.subject Li V (PO ) 3 2 4 3
dc.subject Magnetization
dc.title Magnetic properties and vanadium oxidation state in α-Li<inf>3</inf>V<inf>2</inf>(PO<inf>4</inf>)<inf>3</inf>/C composite: Magnetization and ESR measurements
dc.type Article
dc.relation.ispartofseries-volume 323
dc.collection Публикации сотрудников КФУ
dc.source.id SCOPUS00381098-2021-323-SID85092708768


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  • Публикации сотрудников КФУ Scopus [24551]
    Коллекция содержит публикации сотрудников Казанского федерального (до 2010 года Казанского государственного) университета, проиндексированные в БД Scopus, начиная с 1970г.

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