| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1279607 | International Journal of Hydrogen Energy | 2008 | 6 Pages |
Abstract
Various Mg/Nb/O mixed phases have been prepared by solid state reaction in order to mimic similar compounds formed in the ball milled system composed of MgH2 and Nb2O5. The latter oxide has a role as a promoter of the hydrogen uptake and desorption in the Mg/MgH2 system for hydrogen storage. One mixed phase in particular (Mg3Nb6O11) have shown a reversible uptake of molecular hydrogen, confirmed by thermal desorption experiments followed by mass spectroscopy. Comparison of the behaviour of this phase with NbO shows how a reversible interaction with hydrogen may be linked to the presence of octahedral niobium clusters in both oxides.
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Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
F. Dolci, M. Baricco, P.P. Edwards, E. Giamello,