In-situ Neutron Diffraction Study of Magnesium Amide / Lithium Hydride Stoichiometric Mixtures with Lithium Hydride Excess
The hydrogen sorption of mixtures of magnesium amide (Mg(NH2)2) and lithium hydride (LiH) with different molecular ratios have been investigated using in-situ neutron diffraction; the experiments were performed at D20/ILL and SPODI/FRMII. The results reveal a common reaction pathway for 1:2, 3:8 and 1:4 magnesium amide: lithium hydride mixtures. Intermediate reaction steps are observed in both ab- and desorption. The thermodynamic properties of the system at 200 C are not changed by the addition of excess lithium hydride. This finding has important implications for the tailoring the characteristics of this promising hydrogen storage material.
DOLCI Francesco;
WEIDNER Eveline;
HOELZEL Markus;
HANSEN Thomas;
MORETTO Pietro;
PISTIDDA Claudio;
BRUNELLI Michela;
FICHTNER Maximilan;
LOHSTROH Wiebke;
2010-06-07
PERGAMON-ELSEVIER SCIENCE LTD
JRC56047
0360-3199,
http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V3F-4YTD7C5-2&_user=4692146&_coverDate=06%2F30%2F2010&_alid=1353755513&_rdoc=1&_fmt=high&_orig=search&_cdi=5729&_sort=r&_docanchor=&view=c&_ct=3&_acct=C000036252&_version=1&_urlVersion=0&_userid=4,
https://publications.jrc.ec.europa.eu/repository/handle/JRC56047,
10.1016/j.ijhydene.2010.03.030,
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