The Influence of Cerium on the Hydrogen Storage Properties of La1-xCexNi5 Alloys

Magda Pęska , Julita Dworecka-Wójcik , Tomasz Płociński , Marek Polański


La1-xCexNi5 alloys (x = 0, 0.09, 0.25 and 0.5) were investigated in terms of their structures, phase contents, hydrogen storage properties and microhardness. It was confirmed that a cerium addition to the reference (LaNi5) alloy caused structural changes such as lattice shrinkage and, as a result, changed both the absorption and desorption pressures and the enthalpies of formation and decomposition. The alloy with the highest cerium content was found to possess a two-phase structure, probably as a result of nonequilibrium cooling conditions during its manufacturing process. The microhardness was found to increase to some extent with the cerium content and decrease for samples with the highest cerium content.
Author Magda Pęska
Magda Pęska,,
, Julita Dworecka-Wójcik
Julita Dworecka-Wójcik,,
, Tomasz Płociński (FMSE / DMD)
Tomasz Płociński,,
- Division of Materials Design
, Marek Polański
Marek Polański,,
Journal seriesEnergies, [ENERGIES], ISSN 1996-1073
Issue year2020
Publication size in sheets0.3
Article number1437
Keywords in EnglishLaNi5; cerium; isotherms; hydrogen storage; equilibrium pressures
ASJC Classification1700 General Computer Science
Languageen angielski
energies-13-01437.pdf 4.21 MB
Score (nominal)140
Score sourcejournalList
ScoreMinisterial score = 140.0, 30-07-2020, ArticleFromJournal
Publication indicators GS Citations = 2.0; Scopus SNIP (Source Normalised Impact per Paper): 2018 = 1.156; WoS Impact Factor: 2018 = 2.707 (2) - 2018=2.99 (5)
Citation count*2 (2020-09-15)
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