Electrochemical synthesis and properties of CoO2, the x = 0 phase of the AxCoO2 systems (A = Li, Na)

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dc.creatorMotohashi, T.
dc.creatorOno, T.
dc.creatorKatsumata, Y.
dc.creatorKanno, R.
dc.creatorKarppinen, M.
dc.creatorYamauchi, H.
dc.date2008-01-17
dc.date.accessioned2026-07-07T08:54:57Z
dc.date.available2026-07-07T08:54:57Z
dc.descriptionSingle-phase bulk samples of the "exotic" CoO2, the x = 0 phase of the AxCoO2 systems (A = Li, Na), were successfully synthesized through electrochemical de-intercalation of Li from pristine LiCoO2 samples. The samples of pure CoO2 were found to be essentially oxygen stoichiometric and possess a hexagonal structure consisting of stacked triangular-lattice CoO2 layers only. The magnetism of CoO2 is featured with a temperature-independent susceptibility of the magnitude of 10-3 emu/mol Oe, being essentially identical to that of a Li-doped phase, Li0.12CoO2. It is most likely that the CoO2 phase is a Pauli-paramagnetic metal with itinerant electrons.
dc.description12 pages, 3 figures
dc.identifierhttps://arxiv.org/abs/0801.2607
dc.identifierhttp://arxiv.org/abs/0801.2607
dc.identifierJournal of Applied Physics 103, 07C902 (2008)
dc.identifierdoi:10.1063/1.2828525
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/146128
dc.subjectStrongly Correlated Electrons
dc.subjectMaterials Science
dc.titleElectrochemical synthesis and properties of CoO2, the x = 0 phase of the AxCoO2 systems (A = Li, Na)
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