Hydrides of LaNi compounds☆
Review articleOpen access
1976/10/01 Full-length article DOI: 10.1016/0025-5408(76)90028-3
Journal: Materials Research Bulletin
AbstractHydrides of various compounds in the La-Ni system have been prepared by gas absorption at temperatures from 25 to 200°C and pressures from 50 to 100 atmospheres of H2. The compositions of the resulting hydrides are: La7Ni3H21, LaNiH3.6, LaNi2H4.5, LaNi3H5, La2Ni7H10 and LaNi5H6.5. X-ray diffraction verified that LaNiH3.6 and LaNi5H6.5 are ternary compounds, while LaNi2H4.5, LaNi3H5 and La2Ni7H10 form in an amorphous state when hydrided at temperatures near 25°C. La7Ni3 forms primarily LaH3 during hydrogen absorption. There were no indications of superconductivity or magnetic order down to 1.8K in any of these materials.
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