%0 journal article
%@ 0925-8388
%A Eigen, N., Boesenberg, U., Bellosta von Colbe, J., Jensen, T., Cerenius, Y., Dornheim, M., Klassen, T., Bormann, R.

%D 2009
%J Journal of Alloys and Compounds
%N 1-2
%P 76-80 
%R doi:10.1016/j.jallcom.2008.10.002
%T Reversible hydrogen storage in NaF–Al composites
%U https://doi.org/10.1016/j.jallcom.2008.10.002
1-2 
%X This work demonstrates that hydrogen can be reversibly stored in a composite of NaF and Al. NaF and Al reacts to a mixture of Na3AlF6 and NaAlH4 via hydridofluoride phases of the form Na3AlH6−xFx. The analysis of thermodynamics based on literature standard enthalpies of formation yields the technically favourable enthalpy of reaction of roughly 35 kJ/mol H2 for a theoretical gravimetric hydrogen storage capacity of 3.3 wt%. Reaction mechanisms are discussed with respect to substitution of hydrogen by fluorine in complex hydrides.