Abstract
Hydride formation was studied in the Hf2Fe−H2 system at hydrogen pressure of up to 2000 atm in a temperature range from 195 to 295 K. Hydride phases of different compositions were studied by the X-ray diffraction method. The hydrogenation reaction in the system can take two pathways to form two stable hydride phases depending on the conditions of initial hydrogenation. Absorption of hydrogens at a pressure of about 2000 atm yields a hydride which contains two H atoms per metal atom. Models of the arrangement of hydrogen atoms in the crystal lattice of hydride phases were suggested.
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Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 1, pp. 33–36, January, 1997.
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Klyamkin, S.N., Burnasheva, V.V. & Semenenko, K.N. Some peculiarities of interactions in the Hf2Fe−H2 system at low temperatures and high pressures. Russ Chem Bull 46, 28–31 (1997). https://doi.org/10.1007/BF02495341
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DOI: https://doi.org/10.1007/BF02495341