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The Influence of Hydrogen on Structural and Magnetic Transformations in R Mn 2 H x Hydrides with Laves Phase C15 and C14 Structures—A Review

Author

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  • Andrzej Budziak

    (Faculty of Energy and Fuels, AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Kraków, Poland)

  • Joanna Szafraniec

    (Faculty of Energy and Fuels, AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Kraków, Poland)

Abstract

Laves phases crystallize in simple structures and are very common intermetallic phases that can form from combinations of elements throughout the periodic table, giving a huge number of known examples. A special feature of AB2 or AB5 phases is the ability to absorb hydrogen. This study attempts to collect, systematize and summarize the knowledge about R Mn 2 H x ( R : Tb, Gd, Ho, Dy, Er, Sm, Nd and Y) hydrides available in the literature that is mainly related to structural and magnetic transformations. Due to the enormous wealth of data, the analysis focused on hydrides with x < 4.5 H/f.u., i.e., hydrides obtained at relatively low pressure (less than a few bars). The hydrides obtained in this way can be treated as potential hydrogen stores, which undoubtedly accounts for their current attractiveness.

Suggested Citation

  • Andrzej Budziak & Joanna Szafraniec, 2023. "The Influence of Hydrogen on Structural and Magnetic Transformations in R Mn 2 H x Hydrides with Laves Phase C15 and C14 Structures—A Review," Energies, MDPI, vol. 16(21), pages 1-25, October.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:21:p:7383-:d:1272033
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