http://www.cnr.it/ontology/cnr/individuo/prodotto/ID181157
Nb clusters formation in Nb-doped magnesium hydride (Articolo in rivista)
- Type
- Label
- Nb clusters formation in Nb-doped magnesium hydride (Articolo in rivista) (literal)
- Anno
- 2005-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1063/1.2007866 (literal)
- Alternative label
Checchetto, R (Checchetto, R); Bazzanella, N (Bazzanella, N); Miotello, A (Miotello, A); Maurizio, C (Maurizio, C); D'Acapito, F (D'Acapito, F); Mengucci, P (Mengucci, P); Barucca, G (Barucca, G); Majni, G (Majni, G) (2005)
Nb clusters formation in Nb-doped magnesium hydride
in Applied physics letters
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Checchetto, R (Checchetto, R); Bazzanella, N (Bazzanella, N); Miotello, A (Miotello, A); Maurizio, C (Maurizio, C); D'Acapito, F (D'Acapito, F); Mengucci, P (Mengucci, P); Barucca, G (Barucca, G); Majni, G (Majni, G) (literal)
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- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- 1. Univ Trent, Dipartimento Fis, I-38050 Trento, TN, Italy
2. European Synchrotron Radiat Facil, GILDA, CRG, F-38043 Grenoble, France
3. Univ Politecn Marche, Dipartimento Fis & Ingn Mat Terr, I-60131 Ancona, Italy (literal)
- Titolo
- Nb clusters formation in Nb-doped magnesium hydride (literal)
- Abstract
- Extended x-ray absorption fine structure spectroscopy, x-ray diffraction and transmission electron microscopy were used to analyze the Nb coordination and clustering in Nb-doped (5 at. %) h-Mg film samples deposited by rf magnetron sputtering. Results show that the catalytic effect of the Nb doping in the H-2 absorption and desorption kinetics is connected with the formation of Nb nanoclusters dispersed in the host matrix. The H-2 desorption from beta-MgH2 is favored by local elastic stresses produced by beta-NbH0.89 clusters on the MgH2 matrix that reduces the stability of the hydride phase and by preferential paths in the nanocomposite hydride. (c) 2005 American Institute of Physics. (literal)
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