Investigation of ZrFe2 and ZrCo2 under very high pressure of gaseous hydrogen and deuterium

S. M. Filipek, I. Jacob, V. Paul-Boncour, A. Percheron-Guegan, I. Marchuk, D. Mogilyanski, J. Pielaszek

Research output: Contribution to journalArticlepeer-review

32 Scopus citations

Abstract

New hydrides and deuterides of Laves cubic phases ZrFe2 and ZrCo2 were synthesized by high hydrogen (deuterium) pressure technique. For both Laves phases the symmetry of lattice does not change but a large expansion of lattice parameter (by 8% for ZrFe2 and by 4.5% for ZrCo2) occurs during hydrides (deuterides) formation. In contrast to the relatively stable hydride (if stored in an inert atmosphere) formed in ZrFe2, the ZrCo2H2 decomposes easily at 25°C. Large lattice expansion of ZrFe2 during the deuteride formation changes only slightly its magnetic properties.

Original languageEnglish
Pages (from-to)1921-1926
Number of pages6
JournalPolish Journal of Chemistry
Volume75
Issue number12
StatePublished - 1 Dec 2001

Keywords

  • Deuterides
  • High pressure
  • Hydrides
  • Laves phase

ASJC Scopus subject areas

  • Chemistry (all)

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