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Synchrotron X-ray diffraction studies of LiMn2O4 and Li4Mn5O12 structures at high pressure

Författare:
  • P. Piszora
  • W. Nowicki
  • J. Darul
  • B. Bojanowski
  • Stefan Carlson
  • Y. Cerenius
Publiceringsår: 2009
Språk: Engelska
Sidor: 89-92
Publikation/Tidskrift/Serie: Radiation Physics and Chemistry
Volym: 78
Dokumenttyp: Konferensbidrag
Förlag: Elsevier

Sammanfattning

Experimental study of the phase transition in the lithium-excess lithium-manganese spinel over the pressure range 0-13 GPa has shown its suppression. This observation implies that the Li/Mn ratio, associated with the manganese oxidation state, plays an important role in the high-pressure phase transformation of the lithium-manganese spinels. As indicated by the results, the occupation of the octahedral sites with Li+ and Mn4+ ions stabilizes the crystallographic structure of this cubic spinel even at a high pressure. (C) 2009 Elsevier Ltd. All rights reserved.

Nyckelord

  • Natural Sciences
  • Physical Sciences
  • Jahn-Teller effect
  • diffraction
  • X-ray
  • Phase transition
  • Spinel
  • High pressure
  • Lithium-manganese oxide
  • LiMn2O4
  • Li1.33Mn1.67O4

Övriga

9th International School and Symposium on Synchrotron Radiation in Natural Science (ISSRNS-9)
Published
  • ISSN: 0969-806X

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