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Comportement d'hydrogénation d'alliages de La(1-z)Ce(z)Fe(11,6)Si(1,4) (z= 0, 0,3) et stabilité de leurs hydrides.

The hydrogenation behaviour of La(1-z)Ce(z)Fe(11.6)Si(1.4) (z= 0, 0.3) alloys and the stability of their hydrides.

Auteurs : WANG J. W., TANG Y. B., CHEN Y. G., et al.

Résumé

The hydrogen absorption kinetics and hydrogen desorption PCT performances of these alloys are investigated in this paper. The results show that the hydrogen absorption kinetics performances of both alloys are excellent. The hydrogen desorption plateau doesn't exist during the process of their hydrides desorption and the hydrogen capacity in both alloys can be easily adjusted by changing temperature or pressure. In addition, the hydrogen in these alloys can be released gradually by increasing external temperature. The NaZn13-type main structure is stable during the cycle of hydrogen absorption and desorption. The lattice parameter of NaZn13 phase increases proportionally with the increase of hydrogen capacity in these alloys.

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Pages : 2010-4

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Détails

  • Titre original : The hydrogenation behaviour of La(1-z)Ce(z)Fe(11.6)Si(1.4) (z= 0, 0.3) alloys and the stability of their hydrides.
  • Identifiant de la fiche : 2011-0175
  • Langues : Anglais
  • Source : 4th International Conference on Magnetic Refrigeration at Room Temperature (Thermag IV). Proceedings: Baotou, China, August 23-27, 2010.
  • Date d'édition : 23/08/2010

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