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

Autor: Karimi F; Department of Nanotechnology, Institute of Materials Research, Helmholtz-Zentrum HEREON Max-Planck-Straße 1 21502 Geesthacht Germany fahim.karimi2017hh@gmail.com., Pranzas PK; Department of Nanotechnology, Institute of Materials Research, Helmholtz-Zentrum HEREON Max-Planck-Straße 1 21502 Geesthacht Germany fahim.karimi2017hh@gmail.com., Puszkiel JA; Department of Nanotechnology, Institute of Materials Research, Helmholtz-Zentrum HEREON Max-Planck-Straße 1 21502 Geesthacht Germany fahim.karimi2017hh@gmail.com.; Department of Physicochemistry of Materials, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) y Centro Atómico Bariloche Av. Bustillo km 9500 S.C. de Bariloche Argentina., Castro Riglos MV; Department of Metalphysics, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) y Centro Atómico Barilo-che Av. Bustillo km 9500 S.C. de Bariloche Argentina., Milanese C; C.S.G.I. & Department of Chemistry, Physical Chemistry Section, University of Pavia Viale Taramelli 16 27100 Pavia Italy., Vainio U; Hitachi High-Tech Analytical Science Finland Finland., Pistidda C; Department of Nanotechnology, Institute of Materials Research, Helmholtz-Zentrum HEREON Max-Planck-Straße 1 21502 Geesthacht Germany fahim.karimi2017hh@gmail.com., Gizer G; Department of Nanotechnology, Institute of Materials Research, Helmholtz-Zentrum HEREON Max-Planck-Straße 1 21502 Geesthacht Germany fahim.karimi2017hh@gmail.com., Klassen T; Department of Nanotechnology, Institute of Materials Research, Helmholtz-Zentrum HEREON Max-Planck-Straße 1 21502 Geesthacht Germany fahim.karimi2017hh@gmail.com., Schreyer A; European Spallation Source ERIC Box 176 S-22100 Lund Sweden., Dornheim M; Department of Nanotechnology, Institute of Materials Research, Helmholtz-Zentrum HEREON Max-Planck-Straße 1 21502 Geesthacht Germany fahim.karimi2017hh@gmail.com.
Jazyk: angličtina
Zdroj: RSC advances [RSC Adv] 2021 Jun 30; Vol. 11 (37), pp. 23122-23135. Date of Electronic Publication: 2021 Jun 30 (Print Publication: 2021).
DOI: 10.1039/d1ra03246a
Abstrakt: Reversible solid-state hydrogen storage is one of the key technologies toward pollutant-free and sustainable energy conversion. The composite system LiBH 4 -MgH 2 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 NbF 5 . The catalytic effect of NbF 5 on the dehydrogenation/hydrogenation process of LiBH 4 -MgH 2 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 NbF 5 in hydrogen release and uptake in the LiBH 4 -MgH 2 composite system.
Competing Interests: There are no conflicts to declare.
(This journal is © The Royal Society of Chemistry.)
Databáze: MEDLINE
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