Hydrogen storage behavior of Mg/Ni layered nanostructured composite materials produced by accumulative fold-forging

0567353 - FZÚ 2023 RIV US eng J - Journal Article
Khodabakhshi, F. - Ekrt, Ondřej - Abdi, M. - Gerlich, A.P. - Mottaghi, M. - Ebrahimi, R. - Nosko, M. - Wilde, G.
Hydrogen storage behavior of Mg/Ni layered nanostructured composite materials produced by accumulative fold-forging.
International Journal of Hydrogen Energy. Roč. 47, č. 2 (2022), s. 1048-1062. ISSN 0360-3199. E-ISSN 1879-3487
Institutional support: RVO:68378271
Keywords : Mg/Ni layered material * composite structure * accumulative fold-forging (AFF) * microstructure * hydrogen storage
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
Impact factor: 7.2, year: 2022
Method of publishing: Limited access
https://doi.org/10.1016/j.ijhydene.2021.10.096

An advanced and newly developed severe plastic deformation (SPD) method called accumulative fold-forging (AFF) was applied to produce layered nanostructured MgNi alloys exhibiting superior hydrogen storage capacity. Microstructural developments and storage properties were characterized in depth to correlate the structure and performance of this advanced material. The enhanced hydrogen storage performance of the magnesium-based layered composite material was investigated in comparison to the pristine state by conducting hydrogenation and dehydrogenation testing. It was also shown that the hydrogen uptake and release characteristics can be controlled by adjusting the layered structure or the Mg: Ni stoichiometry ratio. Refining the grain structure of the magnesium alloy down to the nano-scale range by applying high cycles AFF consolidation to promote creation of multi-million nanometric interfaces led to superior storage performance.
Permanent Link: https://hdl.handle.net/11104/0338615