Zhang Yuqing, Zhang Yajie, He Tianmeng, Wang Hao, Zhang Shubin, Wang Jinpeng, Xue Xiaoyi, Liu Yanrong, Chen Biaohua
College of Environmental Science and Engineering, Beijing University of Technology, Beijing 100124, China.
CAS Key Laboratory of Green Process and Engineering, State Key Laboratory of Mesoscience and Engineering, Beijing Key Laboratory of Solid State Battery and Energy Storage Process, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China.
Molecules. 2025 May 14;30(10):2161. doi: 10.3390/molecules30102161.
Superlattice hydrogen storage alloys have attracted much attention due to their high capacity, excellent cyclic stability, and moderate operating conditions. This review, focusing on journal articles published between 2020 and 2025, comprehensively covers the impacts of doping with different rare-earth elements and the substitution of different elements on superlattice hydrogen storage alloys and details the influence mechanisms of different preparation methods, such as arc melting and powder metallurgy, on the phase structure of alloys. A thorough analysis is conducted on how rare-earth element doping alters the crystal structure, lattice parameters, and phase stability of alloys, thereby affecting their hydrogen storage performance. Meanwhile, the differences in the effects of different substituting elements at various substitution sites on the phase structure and hydrogen storage performance of alloys are explored, and the regular patterns and influencing factors are summarized. This review provides a new perspective for the design and development of high-performance superlattice hydrogen storage alloys and is expected to contribute to the long-term and sustainable development of clean hydrogen energy.
超晶格储氢合金因其高容量、优异的循环稳定性和适中的工作条件而备受关注。本综述聚焦于2020年至2025年间发表的期刊文章,全面涵盖了不同稀土元素掺杂以及不同元素替代对超晶格储氢合金的影响,并详细阐述了电弧熔炼和粉末冶金等不同制备方法对合金相结构的影响机制。深入分析了稀土元素掺杂如何改变合金的晶体结构、晶格参数和相稳定性,从而影响其储氢性能。同时,探讨了不同替代元素在不同替代位点对合金相结构和储氢性能影响的差异,并总结了规律模式和影响因素。本综述为高性能超晶格储氢合金的设计与开发提供了新的视角,有望为清洁氢能的长期可持续发展做出贡献。