Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1504382 | Solid State Sciences | 2014 | 5 Pages |
Abstract
•Reduction of the strong ionic character of MgH2 by transition metals substitutions.•Trirutile host structure helps selectively modifying the Mg versus T environments.•Gradual decrease of H charge from −.82 to −.02e due to T.
The strong ionicity of H within rutile MgH2 is reduced by selective substitution of Mg by T (=Fe, Co, Ni, Pd, Pt) using trirutile super-structure host TMg2H6. These novel model systems, as computed in the quantum mechanical framework of density functional theory, showed a gradual decrease of the charges carried by H down to −0.02e improving the use of MgH2 for applications.
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Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Adel F. Al Alam, Samir F. Matar, Naïm Ouaini,