Hydrogen sorption properties of some ab2 laves phase compounds

I. Jacob, D. Shaltiel

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82 Scopus citations


The hydrogen sorption properties of the hydrides of the Laves phase compounds GdB2 (B=Mn, Fe, Co, Ni, Rh, Ru) and LaRh2 have been studied at various temperatures in the pressure range up to 20 atm. Hydrogen absorption in LaB2 (B=Ru, Pt, Ir, Al) and GdB2 (B=Ir, Al) was measured in the pressure range up to 70 atm. A model that calculates the prefered interstitial sites occupied by the hydrogen is presented for the AB2 compounds. A gradual decrease of the hydrogen absorption capacity is observed for the GdNi2 and GdCo2 compounds after several absorption-desorption cycles. The hydrogen-cycled GdRh2 exhibited a change in its thermodynamic properties.

Original languageEnglish
Pages (from-to)117-128
Number of pages12
JournalJournal of the Less-Common Metals
Issue number1
StatePublished - 1 Jan 1979
Externally publishedYes

ASJC Scopus subject areas

  • Engineering (all)


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