Effect of HPT on the First Hydrogenation of LaNi5 Metal Hydride

Renato Belli Strozi; Julia Ivanisenko; Natalia Koudriachova; Jacques Huot

LAPSE:2023.34176

Published Article

LAPSE:2023.34176

Effect of HPT on the First Hydrogenation of LaNi5 Metal Hydride

Renato Belli Strozi, Julia Ivanisenko, Natalia Koudriachova, Jacques Huot

April 25, 2023

Abstract
This paper reports the effect of high-pressure torsion (HPT) on the first hydrogenation of LaNi5. 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 LaNi5, HPT has a beneficial effect only for the first hydrogenation.

Record ID

LAPSE:2023.34176

Keywords

AB5 alloys, high-pressure torsion, hydrogen storage, LaNi5

Subject

Energy Systems

Suggested Citation

Strozi RB, Ivanisenko J, Koudriachova N, Huot J. Effect of HPT on the First Hydrogenation of LaNi5 Metal Hydride. (2023). LAPSE:2023.34176

Author Affiliations

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

Journal Name

Energies

Volume

14

Issue

20

First Page

6710

Year

2021

Publication Date

2021-10-15