Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1501846 | Scripta Materialia | 2009 | 4 Pages |
Abstract
Composite powders of Mg50Ni and Mg15Fe with LiBH4 have been produced by short-time milling under an argon atmosphere. These composites show enhanced reversible hydrogen capacities of 7 wt.% (Ni) and 5.5 wt.% (Fe) at 573 K in just 300 s. The presence of LiBH4 does not modify the thermodynamic of the composites, but does account for their improved kinetic behavior. As evidence of a new kind of Mg–B interaction, MgNi3B2 is clearly identified after successive hydrogen sorption cycles below 623 K.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
J.A. Puszkiel, F.C. Gennari,