Volume 3 · Issue 6 (2026)
DOI number:
10.66521/2938-9933-2026062902
Research Progress and Application Prospects of Magnesium-Nickel Hydrogen Storage Alloys
Kai Deng, Sun Li, Jidong Li*
School of Materials and Metallurgy, University of Science and Technology Liaoning, Anshan, 114051, Liaoning, China
Corresponding Author: Jidong Li (lijidong1014@163.com)
Abstract: Magnesium-nickel hydrogen storage alloys combine the resource advantages of Mg-based materials with the catalytic activity of nickel, and have long attracted attention in the field of solid-state hydrogen storage. The central issue is not merely whether the material can absorb hydrogen, but how hydrogen molecules are activated at the surface, how hydrogen atoms enter the alloy interior, and whether the resulting hydrides can release hydrogen stably under relatively mild conditions. This article reviews recent progress in the reversible transformation of Mg₂Ni/Mg₂NiH₄, synergistic regulation by rare-earth and transition-metal elements, microstructural refinement and interfacial catalysis, and discusses future prospects in relation to reactor thermal management and application scenarios.
Keywords: Magnesium-nickel alloy; Solid-state hydrogen storage; Mg₂NiH₄; Interfacial regulation; application prospects
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