Xu Yaohui, Zhou Yang, Li Yuting, Hao Yechen, Wu Pingkeng, Ding Zhao
Laboratory for Functional Materials, School of New Energy Materials and Chemistry, Leshan Normal University, Leshan 614000, China.
Leshan West Silicon Materials Photovoltaic New Energy Industry Technology Research Institute, Leshan 614000, China.
Molecules. 2024 May 27;29(11):2525. doi: 10.3390/molecules29112525.
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.
镁基储氢合金因其高储氢容量、储量丰富、成本低和可逆性等优点，作为固态储氢的有前景材料而备受关注。然而，这些合金的广泛应用受到了几个挑战的阻碍，包括缓慢的吸氢/解吸动力学、氢化镁的高热力学稳定性以及有限的循环寿命。这篇综述全面深入地概述了镁基储氢合金的最新进展，涵盖了它们的基本性质、合成方法、改性策略、储氢性能和潜在应用。综述讨论了镁基合金的热力学和动力学性质，以及合金化、纳米结构化和表面改性对其储氢性能的影响。比较了不同镁基合金体系的吸氢/解吸性能，并研究了各种改性策略对这些性能的影响。综述还探讨了镁基储氢合金的潜在应用，包括移动和固定式储氢、可充电电池和热能储存。最后，讨论了该领域当前的挑战和未来的研究方向，强调了对储氢机制的深入理解、新型合金成分的开发、改性策略的优化、将镁基合金集成到储氢系统以及学术界和工业界合作的必要性。
