Improving the efficiency of hydrogen storage in LaNi5-based materials through cobalt modification
Miniyazov A. Skakov M. Mukhamedova N. Skopchenko M. Oken O. Sabyrtayeva A. Sokolov I. Nassyrova A.
January 2025AIMS Press
AIMS Energy
2025#13Issue 61417 - 1431 pp.
This paper investigated the effect of cobalt on hydrogen storage in the intermetallic compound LaNi5. Phase composition and hydrogen absorption properties of the LaNi5–хCoх system were analyzed using X-ray diffraction. The results demonstrated the retention of the hexagonal AB5-type structure upon substitution of nickel atoms with cobalt atoms, accompanied by minor changes in lattice parameters and the formation of the LaNi5Co phase. Hydrogen absorption studies revealed an increase in the material’s capacity to 1.9% and a reduction in the time required to reach 90% of the equilibrium concentration to 2–3 minutes. These findings indicate that cobalt modification is an effective method to enhance hydrogen storage efficiency.
cobalt , hydrogen storage , LaNi5 , metal hydride , spark plasma sintering
Text of the article Перейти на текст статьи
National Nuclear Centre RK, Kurchatov, 071100, Kazakhstan
Department of Technical Physics and Heat Power Engineering, Shakarim University, Semey, 071410, Kazakhstan
S.Amanzholov East Kazakhstan University, Kamenogorsk, 070004, Kazakhstan
National Nuclear Centre RK
Department of Technical Physics and Heat Power Engineering
S.Amanzholov East Kazakhstan University
10 лет помогаем публиковать статьи Международный издатель
Книга Публикация научной статьи Волощук 2026 Book Publication of a scientific article 2026