@article{Hu2026, 
author = {Shiyang Hu and Xin Ding and Ruirun Chen and Xiangfeng Ma and Wenchao Cao and Hongxian Shen and Yong Zhang},
title = {Rapidly Solidified Fibers for Optimizing Hydrogen Storage Property via In Situ Multiphase Catalysts},
year = {2026},
journal = {Energy Material Advances},
volume = {7},
pages = {0152},
url = {https://www.sciopen.com/article/10.34133/energymatadv.0152},
doi = {10.34133/energymatadv.0152},
abstract = {The hydrogen de-/absorption properties of high-capacity Mg-based hydrogen storage alloys are hard to improve due to coarse α-Mg grains and catalytic element segregation. In this study, rapid solidification is introduced to Mg97Ni3-xYx (x = 0, 0.25, 0.5, 1, at %) alloys, aiming to improve hydrogenation capacity and de-/hydrogenation kinetic jointly. The results indicate that homogeneous and refined microstructure is formed in rapid-solidified fibers, and NiY3 and Mg2Ni phases are generated in heat-treated fibers. Hydrogen absorption properties are improved as Y content is increased to 0.5 at %. The in situ generated YH3 phases produce a “synergistic effect” on MgH2 desorption and further reduce overall dehydrogenation temperature. Due to the homogeneous and refined microstructure and the ultrafine dispersed YH2/YH3 phases introduced by moderate Y doped, the fiber alloy can absorb more hydrogen in stage 1 and improve the hydrogenation capacity and hydrogenation rate.}
}