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LiF-MgB2 System for Reversible Hydrogen Storage

  • R. Gosalawit-Utke
  • J. M. Bellosta von Colbe
  • M. Dornheim
  • T. R. Jensen
  • Yngve Cerenius
  • Christian Bonatto Minella
  • Maik Peschke
  • R. Bormann
Publiceringsår: 2010
Språk: Engelska
Sidor: 10291-10296
Publikation/Tidskrift/Serie: Journal of Physical Chemistry C
Volym: 114
Nummer: 22
Dokumenttyp: Artikel
Förlag: American Chemical Society


LiF-MgB2 composites are proposed for reversible hydrogen storage. With respect to pure LiBH4, a significantly kinetic destabilization regarding hydrogenation and dehydrogenation is accomplished. The reversible hydrogen storage capacity is up to 6.4 wt %. The kinetic properties are improved significantly during cycling. The formations of the hydridofluoride phases (LiBa4-yFy and LiH1-xFx) are observed by in situ synchrotron X-ray diffraction (XRD) and attenuated total reflection Fourier transform infrared spectroscopy (ATR-FTIR). Hydrogenation and dehydrogenation mechanisms are described on the basis of the formation and decomposition of the hydridofluoride phases, respectively.



  • Chemistry


  • ISSN: 1932-7447

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