Electrochemical hydrogenation of Tb<sub>2</sub>Ni<sub>7-x</sub>M<sub>x</sub> (M = Al, Ga) composites

Authors

  • V. Nytka Department of Inorganic Chemistry, Ivan Franko National University of Lviv
  • V. Kordan Department of Inorganic Chemistry, Ivan Franko National University of Lviv
  • V. Voloshyn Department of Inorganic Chemistry, Ivan Franko National University of Lviv
  • I. Tarasiuk Department of Inorganic Chemistry, Ivan Franko National University of Lviv
  • V. Pavlyuk Department of Inorganic Chemistry, Ivan Franko National University of Lviv

Abstract

For R2M7 (R = rare-earth metal, M = Fe, Co, Ni, Zn) intermetallic compounds or multicomponent solid solutions based on them polymorphism is often characteristic. For example, for Tb2Ni7 structural transition from hexagonal Ce2Ni7 to rhombohedral Gd2Co7 at 931 ℃ is known [1]. Both polymorph modifications mainly dissolve Li, Mg, or some p-elements approximately in equal quantities. The hydrogen sorption properties are inherent to these phases.

References

Nytka V., Kordan V., Tarasiuk І., Zelinska О., Pavlyuk V. Polymorphism of the Tb2Ni7 binary compound. Solubility of lithium and magnesium in α-phase // Visnyk Lviv Univ. Ser. Chem. 2022. Vol. 63. P. 74–81. (in Ukrainian).

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Published

2023-04-03

Issue

2023

Section

Inorganic Chemistry