Magnesium-Based Hydrogen Storage Alloys: Advances, Strategies, and Future Outlook for Clean Energy Applications

Magnesium-based hydrogen storage alloys have attracted significant attention as promising materials for solid-state hydrogen storage due to their high hydrogen storage capacity, abundant reserves, low cost, and reversibility. However, the widespread application of these alloys is hindered by several...

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Bibliographic Details
Published in:Molecules (Basel, Switzerland) Switzerland), 2024-05, Vol.29 (11), p.2525
Main Authors: Xu, Yaohui, Zhou, Yang, Li, Yuting, Hao, Yechen, Wu, Pingkeng, Ding, Zhao
Format: Article
Language:English
Subjects:
Alloys
Atoms & subatomic particles
Batteries
Energy
Entropy
Equilibrium
Force and energy
Green technology
Hydrogen
hydrogen storage
Hydrogenation
Kinetics
Magnesium
magnesium hydride
Metal industry
nanostructuring
Review
surface modification
Technology application
Temperature
Thermodynamics
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Summary:Magnesium-based hydrogen storage alloys have attracted significant attention as promising materials for solid-state hydrogen storage due to their high hydrogen storage capacity, abundant reserves, low cost, and reversibility. However, the widespread application of these alloys is hindered by several challenges, including slow hydrogen absorption/desorption kinetics, high thermodynamic stability of magnesium hydride, and limited cycle life. This comprehensive review provides an in-depth overview of the recent advances in magnesium-based hydrogen storage alloys, covering their fundamental properties, synthesis methods, modification strategies, hydrogen storage performance, and potential applications. The review discusses the thermodynamic and kinetic properties of magnesium-based alloys, as well as the effects of alloying, nanostructuring, and surface modification on their hydrogen storage performance. The hydrogen absorption/desorption properties of different magnesium-based alloy systems are compared, and the influence of various modification strategies on these properties is examined. The review also explores the potential applications of magnesium-based hydrogen storage alloys, including mobile and stationary hydrogen storage, rechargeable batteries, and thermal energy storage. Finally, the current challenges and future research directions in this field are discussed, highlighting the need for fundamental understanding of hydrogen storage mechanisms, development of novel alloy compositions, optimization of modification strategies, integration of magnesium-based alloys into hydrogen storage systems, and collaboration between academia and industry.
ISSN:1420-3049
1420-3049
DOI:10.3390/molecules29112525