Particle size distribution of Ni microprecipitates in LaNi5 used for hydrogen storage
- 15 November 1982
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 41 (10) , 999-1001
- https://doi.org/10.1063/1.93370
Abstract
LaNi5 is an intermetallic compound which absorbs and desorbs hydrogen at convenient temperatures and pressures. It has been used for storing hydrogen fuel, and, using the heat of absorption, for various pump and heat engine applications. Recurrent absorption and desorption of hydrogen produces a phase separation into nickel metal and lanthanum hydride. We show from the magnetic behavior of degraded LaNi5 that a bimodal particle size distribution is present with all particles <(100 Å)3. The magnetic properties may be useful for determining the condition of LaNi5 in a reservoir.Keywords
This publication has 9 references indexed in Scilit:
- Calculation of the spin-polarized energy-band structure of Laand GdPhysical Review B, 1982
- 61Ni Mössbauer measurements of nickel microprecipitates produced in LaNi5 by cyclic hydrogen absorption and desorptionApplied Physics Letters, 1982
- Hydrogen Storage Materials: Properties and PossibilitiesScience, 1981
- Magnetic properties of LaNi5, FeTi, Mg2Ni and their hydridesJournal of the Less Common Metals, 1980
- Surface effects and the formation of metal hydridesJournal of the Less Common Metals, 1980
- Degradation of LaNi5 by temperature-induced cyclingJournal of the Less Common Metals, 1980
- Degradation of Lani5 hydrogen-absorbing material by cyclingJournal of the Less Common Metals, 1980
- Molecular-orbital studies of transition- and noble-metal clusters by the self-consistent-field-scattered-wave methodPhysical Review B, 1976
- Temperaturabh ngigkeit der spontanen Magnetisierung in kleinen ferromagnetischen TeilchenThe European Physical Journal A, 1958