A comprehensive study on lithium-based reactive hydride composite (Li-RHC) as a reversible solid-state hydrogen storage system toward potential mobile applications

Karimi, Fahim; Klaus Pranzas, Philipp; Atillio Puszkiel, Julián; Castro Riglos, María Victoria; Milanese, Chiara; Vainio, Ulla; Pistidda, Claudio; Gizer, Gökhan; Klassen, Thomas; Schreyer, Andreas; Dornheim, Martin

Abstract

Reversible solid-state hydrogen storage is one of the key technologies toward pollutant-free and sustainable energy conversion. The composite system LiBH4–MgH2 can reversibly store hydrogen with a gravimetric capacity of 13 wt%. However, its dehydrogenation/hydrogenation kinetics is extremely sluggish (∼40 h) which hinders its usage for commercial applications. In this work, the kinetics of this composite system is significantly enhanced (∼96%) by adding a small amount of NbF5. The catalytic effect of NbF5 on the dehydrogenation/hydrogenation process of LiBH4–MgH2 is systematically investigated using a broad range of experimental techniques such as in situ synchrotron radiation X-ray powder diffraction (in situ SR-XPD), X-ray absorption spectroscopy (XAS), anomalous small angle X-ray scattering (ASAXS), and ultra/small-angle neutron scattering (USANS/SANS). The obtained results are utilized to develop a model that explains the catalytic function of NbF5 in hydrogen release and uptake in the LiBH4–MgH2 composite system.

Citation

Karimi, F., Klaus Pranzas, P., Atillio Puszkiel, J., Castro Riglos, M. V., Milanese, C., Vainio, U., Pistidda, C., Gizer, G., Klassen, T., Schreyer, A., & Dornheim, M. (2021). A comprehensive study on lithium-based reactive hydride composite (Li-RHC) as a reversible solid-state hydrogen storage system toward potential mobile applications. RSC Advances, 11(37), 23122-23135. https://doi.org/10.1039/D1RA03246A

• Journal Article Type: Article
• Acceptance Date: May 26, 2021
• Online Publication Date: Jun 30, 2021
• Publication Date: 2021
• Deposit Date: Oct 24, 2024
• Publicly Available Date: Oct 24, 2024
• Journal: RSC Advances
• Electronic ISSN: 2046-2069
• Publisher: Royal Society of Chemistry
• Peer Reviewed: Peer Reviewed
• Volume: 11
• Issue: 37
• Pages: 23122-23135
• DOI: https://doi.org/10.1039/D1RA03246A
• Public URL: https://nottingham-repository.worktribe.com/output/34872468
• Publisher URL: https://pubs.rsc.org/en/content/articlelanding/2021/ra/d1ra03246a