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Hydrogenation of Intermetallic Compounds ACo3 (A = Ce, Y) with Hydrogen and Ammonia

  • Inorganic Synthesis and Industrial Inorganic Chemistry
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Abstract

The reactions of intermetallic compounds ACo3 (A = Ce, Y) with hydrogen and ammonia at 20–450°C were studied. The composition of the products and the conditions for preparing the hydride and nitride phases were determined. Phase transformations in the ACo3–NH3 system in the temperature interval 20–450°C and the general scheme of hydrogenation of intermetallic compounds ACo3 were determined. The conditions for preparing tetrahydrides ACo3H4 containing ~1.3–1.5 wt % hydrogen were optimized. The intermetallic compound CeCo3 can be used as a working material in reusable metal hydride hydrogen accumulators that operate at –150°C and are suitable for producing high-purity hydrogen (99.999 wt %).

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Funding

The study was financially supported by the Ministry of Education and Science of the Russian Federation (agreement no. 05.574.21.0209, unique identifier RFMEFI57418X0209).

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Authors and Affiliations

  1. Institute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka, 142432, Moscow oblast, Russia

    V. N. Fokin, V. B. Son, E. E. Fokina & B. P. Tarasov

Authors
  1. V. N. Fokin
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  2. V. B. Son
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  3. E. E. Fokina
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  4. B. P. Tarasov
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Correspondence to V. N. Fokin.

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The authors declare that they have no conflict of interest.

Additional information

Translated from Zhurnal Prikladnoi Khimii, No. 12, pp. 1734–1739, December, 2020 https://doi.org/10.31857/S004446182012004X

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Fokin, V.N., Son, V.B., Fokina, E.E. et al. Hydrogenation of Intermetallic Compounds ACo3 (A = Ce, Y) with Hydrogen and Ammonia. Russ J Appl Chem 93, 1831–1836 (2020). https://doi.org/10.1134/S1070427220120046

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  • DOI: https://doi.org/10.1134/S1070427220120046

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