Elaboration of Chemical Hydrogen Source Based on Hydrides of Magnesium Alloys

In the present work, Mg–Ni–Mm alloys (where Mm is a mixture of rare earth metals) are studied to elaborate a chemical hydrogen source for portable energy systems based on fuel cells characterized by high gravimetric energy density used for unmanned air vehicles and robot systems. Hydrogen generation...

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Published inInorganic materials : applied research Vol. 10; no. 4; pp. 870 - 874
Main Authors Gvozdkov, I. A., Belyaev, V. A., Potapov, S. N., Verbetskii, V. N., Mitrokhin, S. V., Tepanov, A. A.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 2019
Springer Nature B.V
Subjects
Chemistry
Chemistry and Materials Science
Energy costs
Energy storage
Flux density
Fuel cells
Gravimetry
Hydrogen
Hydrogen production
Hydrogen storage
Hydrolysis
Industrial Chemistry/Chemical Engineering
Inorganic Chemistry
Internal energy
Magnesium base alloys
Materials Science
Metal hydrides
Nickel
Organic chemistry
Power supplies
Rare earth elements
Unmanned aerial vehicles
magnesium alloys
metal hydrides
magnesium hydride
fuel cells
hydrolysis
hydrogen absorption
hydrogen storage
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Summary:In the present work, Mg–Ni–Mm alloys (where Mm is a mixture of rare earth metals) are studied to elaborate a chemical hydrogen source for portable energy systems based on fuel cells characterized by high gravimetric energy density used for unmanned air vehicles and robot systems. Hydrogen generation on demand by hydrolysis of metal hydrides (MgH 2 , Mg 2 NiH 4 ) is proposed for the fuel cell power supply because it is the most efficient method characterized by high hydrogen storage density, safety, and low costs of the stored energy. The influence of the composition of alloys on the hydrogen absorption properties and hydrogen generation during hydrolysis is studied.
ISSN:2075-1133
2075-115X
DOI:10.1134/S2075113319040178