Effect of HPT on the First Hydrogenation of LaNi 5 Metal Hydride

Renato Belli Strozi, Julia Ivanisenko, Natalia Koudriachova and Jacques Huot
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Renato Belli Strozi: Graduate Program of Materials Science and Engineering, Federal University of Sao Carlos, Rod. Washington Luis, km 235, Sao Carlos 13565-905, SP, Brazil
Julia Ivanisenko: Institute of Nanotechnology (INT), Karlsruhe Institute of Technology (KIT), 76021 Karlsruhe, Germany
Natalia Koudriachova: School of Physical Sciences, University of Cambridge, Trinity Lane, Cambridge CB2 1TN, UK
Jacques Huot: Hydrogen Research Institute, Université du Québec à Trois-Rivières (UQTR), Trois-Rivieres, QC G9A 5H7, Canada

Energies, 2021, vol. 14, issue 20, 1-10

Abstract: This paper reports the effect of high-pressure torsion (HPT) on the first hydrogenation of LaNi 5 . We found that, for loose powder, reduction of particle size has an effect of increasing the incubation time and decreasing the hydrogen capacity. A higher amount of HPT turns only marginally reduce the incubation time but has no effect on hydrogen capacity. In all cases, the first dehydrogenation and subsequent hydrogenation have the same kinetics, irrespective of the particle size or number of HPT turns. Therefore, for LaNi 5 , HPT has a beneficial effect only for the first hydrogenation.

Keywords: hydrogen storage; high-pressure torsion; AB 5 alloys; LaNi 5 (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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