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Reversible hydrogen storage in NaF-Al composites

Eigen, N.; Boesenberg, U.; von Colbe, J. Bellosta; Jensen, T. R.; Cerenius, Yngve LU ; Dornheim, M.; Klassen, T. and Bormann, R. (2009) In Journal of Alloys and Compounds 477(1-2). p.76-80
Abstract
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 H-2 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. (C) 2008 Elsevier B.V. All rights reserved.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Hydrogen storage materials, Milling, X-ray diffraction, diffraction, Neutron, Calorimetry
in
Journal of Alloys and Compounds
volume
477
issue
1-2
pages
76 - 80
publisher
Elsevier
external identifiers
  • wos:000266386400027
  • scopus:67349248558
ISSN
0925-8388
DOI
10.1016/j.jallcom.2008.10.002
language
English
LU publication?
yes
id
44747def-6bbc-4157-b140-8c6df71047d1 (old id 1425038)
date added to LUP
2009-07-02 16:43:36
date last changed
2017-12-10 03:57:57
@article{44747def-6bbc-4157-b140-8c6df71047d1,
  abstract     = {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 H-2 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. (C) 2008 Elsevier B.V. All rights reserved.},
  author       = {Eigen, N. and Boesenberg, U. and von Colbe, J. Bellosta and Jensen, T. R. and Cerenius, Yngve and Dornheim, M. and Klassen, T. and Bormann, R.},
  issn         = {0925-8388},
  keyword      = {Hydrogen storage materials,Milling,X-ray diffraction,diffraction,Neutron,Calorimetry},
  language     = {eng},
  number       = {1-2},
  pages        = {76--80},
  publisher    = {Elsevier},
  series       = {Journal of Alloys and Compounds},
  title        = {Reversible hydrogen storage in NaF-Al composites},
  url          = {http://dx.doi.org/10.1016/j.jallcom.2008.10.002},
  volume       = {477},
  year         = {2009},
}