HWANG, Seong-Ju; PARK, Seung-Han; CHOY, Jin-Ho; CAMPET, Guy

doi:10.1021/jp036683x

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HWANG, Seong-Ju
Department of Applied Chemistry, Chungju Campus

PARK, Seung-Han
National Research Laboratory of Nonlinear Optics

CHOY, Jin-Ho
National Nanohybrid Materials Laboratory, School of Chemistry

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Journal of Physical Chemistry B. 2004, vol. 108, n° 34, p. 12713-12717

American Chemical Society

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The variation of the lattice vibration of spinel lithium manganate upon chromium substitution has been investigated by performing a combinative micro-Raman and X-ray absorption spectroscopic (XAS) analysis. As the manganese ion in the spinel LiMn2-xCrxO4 is replaced by a chromium ion, the relative intensities of two main Raman peaks at ~580 and ~620 cm-1 are remarkably changed. This change cannot be understood by the previous peak assignment on the basis of the average crystal structure of the cubic spinel lattice...< Leer menos

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Crystal structure

EXAFS spectra

Lattice dynamics

Raman spectra

X-ray spectra

XANES spectra

Lithium manganese oxide

Chromium lithium manganese oxide

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Effect of chromium substitution on the lattice vibration of spinel lithium manganate: A new interpretation of the Raman spectrum of LiMn2O4

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