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American Chemical Society, Journal of Physical Chemistry C, 22(114), p. 10291-10296, 2010

DOI: 10.1021/jp910266m

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LiF−MgB<sub>2</sub> System for Reversible Hydrogen Storage

Journal article published in 2010 by R. Gosalawit-Utke, J. M. Bellosta von Colbe ORCID, M. Dornheim, T. R. Jensen, Y. Cerenius, Christian Bonatto Minella, Maik Peschke, R. Bormann
This paper was not found in any repository, but could be made available legally by the author.
This paper was not found in any repository, but could be made available legally by the author.

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Abstract

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 (LiBH4−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.