%0 journal article
%@ 1932-7447
%A Pistidda, C., Karimi, F., Garroni, S., Rzeszutek, A., Bonatto Minella, C., Milanese, C., Le, T.T., Rude, L.H., Skibsted, J., Jensen, T.R., Horstmann, C., Gundlach, C., Tolkiehn, M., Pranzas, P.K., Schreyer, A., Klassen, T., Dornheim, M.

%D 2014
%J The Journal of Physical Chemistry  C
%N 49
%P 28409-28417 
%R doi:10.1021/jp508780b
%T Effect of the Partial Replacement of CaH2 with CaF2 in the Mixed System CaH2 + MgB2
%U https://doi.org/10.1021/jp508780b
49 
%X In this work the effect of a partial replacement of CaH2 with CaF2 on the sorption properties of the system CaH2 + MgB2 has been studied. The first five hydrogen absorption and four desorption reactions of the CaH2 + MgB2 and 3CaH2 + CaF2 + 4MgB2 systems were investigated by means of volumetric measurements, high-pressure differential scanning calorimetric technique (HP-DSC), 11B and 19F MAS NMR spectroscopy, and in situ synchrotron radiation powder X-ray diffraction (SR-PXD). It was observed that already during the mixing of the reactants formation of a nonstoichiometric CaF2–xHx solid solution takes place. Formation of the CaF2–xHx solid solution sensibly affects the overall hydrogen sorption reactions of the system CaH2 + MgB2.