“…However, the unfavorably high thermal stability and sluggish dehydrogenation kinetics significantly limit its practical application (Luo et al, 2019;Zhang et al, 2020a). Many attempts have been carried out to improve the dehydrogenation and rehydrogeantion properties of MgH 2 , including alloying (Hardian et al, 2018;Hui et al, 2020;Ali and Ismail, 2021), nanoengineering (Zhang et al, 2020a;Zhang et al, 2021c;Thi Thu et al, 2021), and catalyst addition (Zhong et al, 2018;Li et al, 2019b;Liu et al, 2020b;Zhang et al, 2020b;Ding et al, 2020;Singh et al, 2020;Sun et al, 2020;Wang and Deng, 2020;Yao et al, 2020;Zeng et al, 2020;Zhu et al, 2020;Lu et al, 2021a;Lu et al, 2021b;Liu et al, 2021c;, etc. Li is also a H-absorbing metal and has a hydrogen capacity of 11.5 wt.%.…”