X-ray absorption spectra of the spinel Licu0.5Mn1.5O4

作者: M. Womes , P.E. Lippens , B. León , C. Pérez-Vicente , J.L. Tirado

DOI: 10.1016/J.JPOWSOUR.2007.09.012

关键词: X-ray absorption spectroscopyLithium batterySpectral lineK-edgeAbsorption spectroscopyAbsorption (electromagnetic radiation)LithiumSpinelChemistryAnalytical chemistry

摘要: Abstract X-ray absorption spectra of the spinel LiCu0.5Mn1.5O4 were recorded at Cu K and L3, Mn O edge. The are aligned on a common energy scale with aim to establish an experimental picture conduction band structure. fine structures observed few electron volts around thresholds discussed in terms hybridisation cation anion orbitals. Emphasis is put identification spectral features correlated presence lithium tetrahedral sites consequences insertion/extraction intensities these discussed. Previous studies by spectroscopy various spinels found agree our expectations.

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