Hydrogenation behavior of the solid solutions RE<sub>4</sub>NiMg<sub>1−<i>x</i></sub>Al<i><sub>x</sub></i> and RE<sub>4−<i>y</i></sub>NiMg<sub>1+<i>y</i></sub> with RE = Gd and Y
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | COUILLAUD, Samuel | |
| hal.structure.identifier | Institut für Anorganische und Analytische Chemie | |
| dc.contributor.author | LINSINGER, Stefan | |
| hal.structure.identifier | Laboratoire réactivité et chimie des solides - UMR CNRS 7314 [LRCS] | |
| dc.contributor.author | DUÉE, Cédric | |
| hal.structure.identifier | Laboratoire réactivité et chimie des solides - UMR CNRS 7314 [LRCS] | |
| dc.contributor.author | ROUGIER, Aline | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | CHEVALIER, Bernard | |
| hal.structure.identifier | Institut für Anorganische und Analytische Chemie | |
| dc.contributor.author | PÖTTGEN, Rainer | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | BOBET, Jean-Louis | |
| dc.date.issued | 2010 | |
| dc.identifier.issn | 0966-9795 | |
| dc.description.abstractEn | The solid solutions RE<sub>4</sub>NiMg<sub>1−<i>x</i></sub>Al<i><sub>x</sub></i> (0 < <i>x</i> < 0.9) and RE<sub>4−<i>y</i></sub>NiMg<sub>1+<i>y</i></sub> (0 < <i>y</i> < 0.5) with RE = Gd and Y were synthesized from the elements in sealed tantalum ampoules in an induction furnace. The limit of solubility was established in both cases. All the samples crystallize with the cubic Gd<sub>4</sub>RhIn type structure, space group <i>F-43m</i>. The solubility is much lower in the case of Y than for Gd which is linked with steric effects. The hydrogen sorption is irreversible and the large exothermicity of the reaction can lead to the decomposition of the compounds into rare earth hydrides and metallic Ni and Mg. Nevertheless, it is shown that the Y based compounds can absorb almost 3 wt.% of hydrogen at room temperature and under moderate pressure. Furthermore, the solid solutions do not allow destabilization of the hydrides. | |
| dc.language.iso | en | |
| dc.publisher | Elsevier | |
| dc.subject.en | Ternary alloy systems | |
| dc.subject.en | Crystal chemistry of intermetallics | |
| dc.subject.en | Hydrogen storage | |
| dc.title.en | Hydrogenation behavior of the solid solutions RE<sub>4</sub>NiMg<sub>1−<i>x</i></sub>Al<i><sub>x</sub></i> and RE<sub>4−<i>y</i></sub>NiMg<sub>1+<i>y</i></sub> with RE = Gd and Y | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1016/j.intermet.2010.02.007 | |
| dc.subject.hal | Chimie/Matériaux | |
| bordeaux.journal | Intermetallics | |
| bordeaux.page | 1115-1121 | |
| bordeaux.volume | 18 | |
| bordeaux.issue | 6 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-00480899 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-00480899v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Intermetallics&rft.date=2010&rft.volume=18&rft.issue=6&rft.spage=1115-1121&rft.epage=1115-1121&rft.eissn=0966-9795&rft.issn=0966-9795&rft.au=COUILLAUD,%20Samuel&LINSINGER,%20Stefan&DU%C3%89E,%20C%C3%A9dric&ROUGIER,%20Aline&CHEVALIER,%20Bernard&rft.genre=article |
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