Features of the Hydrogenation of Magnesium with a Ni-Graphene Coating

The kinetics of the hydrogenation of magnesium composites with graphene-like material (GLM) on which nickel particles are deposited (Ni/GLM) and dehydrogenation of MgH 2 +Ni/GLM composites is studied. The mechanism of the reactions is revealed using the obtained results and the mathematical processi...

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Bibliographic Details
Published in:Russian Journal of Physical Chemistry A 2020-05, Vol.94 (5), p.996-1001
Main Authors: Tarasov, B. P., Mozhzhukhin, S. A., Arbuzov, A. A., Volodin, A. A., Fokina, E. E., Fursikov, P. V., Lototskyy, M. V., Yartys, V. A.
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Composite materials
Dehydrogenation
Graphene
Hydrogen storage
Hydrogenation
Magnesium
Nickel
Physical Chemistry
Proceedings of the Conference “Physical Chemistry in Russia and Beyond: From Quantum Chemistry to Experiment” (Chernogolovka)
Reaction kinetics
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Summary:The kinetics of the hydrogenation of magnesium composites with graphene-like material (GLM) on which nickel particles are deposited (Ni/GLM) and dehydrogenation of MgH 2 +Ni/GLM composites is studied. The mechanism of the reactions is revealed using the obtained results and the mathematical processing of curves with the Avrami–Erofeev equation. It is found that Ni/GLM considerably accelerates the hydrogenation of Mg and the decomposition of MgH 2 in the composite. The hydrogen-accumulating Mg+Ni/GLM composite is shown to have cyclic stability with rapid and virtually complete reversible hydrogenation.
ISSN:0036-0244
1531-863X
DOI:10.1134/S0036024420050222