ORCID Profile
0000-0001-5545-1261
Current Organisation
Technion Israel Institute of Technology
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Publisher: Springer Science and Business Media LLC
Date: 05-2023
DOI: 10.1007/S10853-023-08537-W
Abstract: A series of Mg–Y–Zn alloys with varying long-period stacking ordered (LPSO) phase fractions were prepared through control of alloy content, heat-treatment, and single-pass extrusion. The effect of LPSO phase volume fraction and microstructure refinement on the hydrogen absorption/desorption properties of ball-milled powders prepared from the extruded alloys was experimentally assessed. The hydrogen absorption and desorption kinetics scaled with the LPSO phase volume fraction, though the results of this study suggest that the scaling is not linear. Variations in the LPSO phase fraction and alloy content did not alter the (de)hydrogenation equilibrium pressure, indicating there is no significant change in thermodynamics of hydrogenation. Hydrogen absorption experiments on thin foils made from the extruded Mg–Y–Zn alloy with a high LPSO phase fraction demonstrated that the LPSO structures decompose into Mg phase, lamellar Mg/Mg–Zn structures and YH 2 particles at hydrogen partial pressures sufficient to form YH 2 . This study shows that the hydrogen absorption/desorption kinetics in the Mg–Y–Zn alloys can be controlled by tailoring the LPSO phases using conventional metallurgical techniques. Graphical Abstract
Publisher: Elsevier BV
Date: 03-2019
Publisher: Elsevier BV
Date: 02-2020
Publisher: Elsevier BV
Date: 03-2020
Publisher: Elsevier BV
Date: 11-2018
Publisher: Elsevier BV
Date: 11-2018
Publisher: IOP Publishing
Date: 08-06-2022
Abstract: Hydrides based on magnesium and intermetallic compounds provide a viable solution to the challenge of energy storage from renewable sources, thanks to their ability to absorb and desorb hydrogen in a reversible way with a proper tuning of pressure and temperature conditions. Therefore, they are expected to play an important role in the clean energy transition and in the deployment of hydrogen as an efficient energy vector. This review, by experts of Task 40 ‘Energy Storage and Conversion based on Hydrogen’ of the Hydrogen Technology Collaboration Programme of the International Energy Agency, reports on the latest activities of the working group ‘Magnesium- and Intermetallic alloys-based Hydrides for Energy Storage’. The following topics are covered by the review: multiscale modelling of hydrides and hydrogen sorption mechanisms synthesis and processing techniques catalysts for hydrogen sorption in Mg Mg-based nanostructures and new compounds hydrides based on intermetallic TiFe alloys, high entropy alloys, Laves phases, and Pd-containing alloys. Finally, an outlook is presented on current worldwide investments and future research directions for hydrogen-based energy storage.
Publisher: MDPI AG
Date: 10-09-2023
Publisher: Wiley
Date: 23-04-2019
Publisher: Wiley
Date: 13-03-2020
No related grants have been discovered for Eugen Rabkin.