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Effect of hpt on the first hydrogenation of lani5 metal hydride

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

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.


Verlagsausgabe §
DOI: 10.5445/IR/1000139345
Veröffentlicht am 29.10.2021
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Nanotechnologie (INT)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2021
Sprache Englisch
Identifikator ISSN: 1996-1073
KITopen-ID: 1000139345
HGF-Programm 43.31.01 (POF IV, LK 01) Multifunctionality Molecular Design & Material Architecture
Erschienen in Energies
Verlag MDPI
Band 14
Heft 20
Seiten 6710
Nachgewiesen in Web of Science
Scopus
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