Influence of Nanostructured Additives (Fe,Co,Ni)xOy on the Mechanochemical Hydrogenation of Mg

Keywords

magnesium hydride, hydrogen sorption, hydrogen generation, hydrolysis.

Abstract

Nanostructured (Fe, Co, Ni)_xO_y additives were synthesized from Fe-Co-Ni-Al alloys by leaching. The Mg-based composites were obtained by reactive ball milling in a hydrogen atmosphere. This report presents the experimental results to show the catalytic effect of nanostructured additives on the mechanochemical synthesis of Mg-based hydride composites. Their hydrogen sorption properties will be compared. Hydrogen generation in the process of hydrolysis reactions in MgCl₂ solutions will be presented for the selected samples.

References

1. Baran A., Polański M. Magnesium-Based Materials for Hydrogen Storage – A Scope Review // Materials (Basel). – 2020. – 13(18). – P. 3993.
2. Zavalii І.Y., Berezovets V.V., Denys R.V. Nanocomposites based on magnesium for hydrogen storage: achievements and prospects (a survey) // Mater. Sci. – 2019. – 54. – P. 611–626. https://doi.org/10.1007/s11003-019-00226-x
3. Zavaliy I., Berezovets V., Denys R., Kononiuk O., Yartys V. Hydrogen absorption-desorption properties and hydrolysis performance of MgH₂-Zr₃V₃O₆H_x and MgH₂-Zr₃V₃O_0.6H_x-C composites // J. Energy Storage. – 2023. – 65. – P. 107245. https://doi.org/10.1016/j.est.2023.107245
4. Kononiuk O.P., Berezovets V.V., Vlad Kh.I., Zavaliy I.Yu. Hydrogenation and hydrolysis properties of Mg/MgH₂–Fe_100–xCo_xO_y composites // Physicochemical Mechanics of Materials. – 2025. – 61(3). – P. 107–116. https://doi.org/10.15407/pcmm2025.03.107