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@INPROCEEDINGS{Soru:155946,
author = {Soru, S. and Taras, A. and Pistidda, C. and Milanese, C.
and Bonatto Minella, C. and Masolo, E. and Nolis, P. and D.
Baró, M. and Marini, A. and Tolkiehn, M. and Dornheim, M.
and Enzo, S. and Mulas, G. and Garroni, S.},
title = {{S}tructural evolution upon decomposition of the
${L}i{A}l{H}_{4}$ + ${L}i{BH}_{4}$ system},
journal = {Journal of alloys and compounds},
issn = {0925-8388},
address = {Lausanne},
publisher = {Elsevier},
reportid = {DESY-2013-01543},
year = {2013},
note = {(c) Elsevier B.V.},
abstract = {In the present work we focus the attention on the phase
structural transformations occurring upon the desorption
process of the LiBH4 + LiAlH4 system. This study is
conducted by means of manometric–calorimetric, in situ
Synchrotron Radiation Powder X-ray Diffraction (SR-PXD) and
exsitu Solid State Magic Angle Spinning (MAS) Nuclear
Magnetic Resonance (NMR) measurements. The desorption
reaction is characterized by two main dehydrogenation steps
starting at 320 and 380 °C, respectively. The first step
corresponds to the decomposition of LiAlH4 into Al and H2via
the formation of Li3AlH6 whereas the second one refers to
the dehydrogenation of LiBH4 (molten state). In the range
328–380 °C, the molten LiBH4 reacts with metallic Al
releasing hydrogen and forming an unidentified phase which
appears to be an important intermediate for the desorption
mechanism of LiBH4–Al-based systems. Interestingly, NMR
studies indicate that the unknown intermediate is stable up
to 400 °C and it is mainly composed of Li, B, Al and H. In
addition, the NMR measurements of the annealed powders (400
°C) confirm that the desorption reaction of the LiBH4 + Al
system proceeds via an amorphous boron compound.},
month = {Jun},
date = {2013-06-30},
organization = {20th International Symposium on
Metastable, Amorphous and
Nanostructured Materials, Turin
(Italy), 30 Jun 2013 - 5 Jul 2013},
cin = {HZG},
ddc = {670},
cid = {I:(DE-H253)HZG-20120731},
pnm = {DORIS Beamline D3 (POF2-54G13)},
pid = {G:(DE-H253)POF2-D3-20130405},
experiment = {EXP:(DE-H253)D-D3-20150101},
typ = {PUB:(DE-HGF)8 / PUB:(DE-HGF)16},
UT = {WOS:000343613600144},
doi = {10.1016/j.jallcom.2013.12.027},
url = {https://bib-pubdb1.desy.de/record/155946},
}