Cao, HujunPistidda, ClaudioRichter, Theresia M. M.Capurso, GiovanniMilanese, ChiaraTseng, Jo-ChiShang, YuanyuanNiewa, RainerChen, PingKlassen, ThomasDornheim, Martin2024-09-272024-09-2720222071-10501905116047http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-ds-150000http://elib.uni-stuttgart.de/handle/11682/15000http://dx.doi.org/10.18419/opus-14981With the aim to find suitable hydrogen storage materials for stationary and mobile applications, multi-cation amide-based systems have attracted considerable attention, due to their unique hydrogenation kinetics. In this work, AmZn(NH2)n (with A = Li, K, Na, and Rb) were synthesized via an ammonothermal method. The synthesized phases were mixed via ball milling with LiH to form the systems AmZn(NH2)n-2nLiH (with m = 2, 4 and n = 4, 6), as well as Na2Zn(NH2)4∙0.5NH3-8LiH. The hydrogen storage properties of the obtained materials were investigated via a combination of calorimetric, spectroscopic, and diffraction methods. As a result of the performed analyses, Rb2Zn(NH2)4-8LiH appears as the most appealing system. This composite, after de-hydrogenation, can be fully rehydrogenated within 30 s at a temperature between 190 °C and 200 °C under a pressure of 50 bar of hydrogen.eninfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/4.0/540article2023-11-14