Electrochemical hydrogenation of Y17.5Ti7.5Ni62.5Mg5Al7.5 аnd Y17.5Ti7.5Ni62.5Mg5Sn7.5 alloys
Анотація
The global demand for accessible electrical energy is continuously increasing; therefore, the search for novel materials for reversible hydrogen storage remains a prominent area of research. RNi3-type compounds belonging to the PuNi3 structural type are highly effective at intercalating hydrogen atoms into the crystal lattice due to the presence of tetrahedral and octahedral interstitial sites, as confirmed by numerous studies [1]. Previous investigations [2–4] have demonstrated that PuNi3-type compounds substituted with elements such as Ca, Ti, Mn, Mg, Co, Al, and Sn form hydrides with higher hydrogen capacity and exhibit enhanced cycling stability. The present work is devoted to the synthesis, phase composition analysis, and electrochemical hydrogenation of multicomponent alloys based on the YNi3 compound doped with Ti, Mg, Al, or Sn.
Посилання
Яртись В.А., Рябов О.Б., Лотоцький М.В. Mатеріалознавство та структурна хімія інтерметалічних гідридів. Львів: СПОЛОМ (2006). 288 с.
Chen J., Takeshita H.T, Tanaka H. et al. Hydriding properties of LaNi3 and CaNi3 and their substitutes with PuNi3 - type structure. J. Less-Common Met. 2000. Vol. 302. P. 304–313.
Sun L.L., Guan N., Wang Y., Electrochemical Performance of Sn-Modified La-Y-Ni-Based Hydrogen Storage Alloys, Mater. Today Commun.. 2025. Vol. 46. P. 112622.
Shi Yu, Leng H., Luo Q., et al. Effect of substituting Y with Mg on the microstructure and electrochemical performance of LaY2Ni9 hydrogen storage alloy. Catal. Today. 2018. Vol. 318. P. 86-90.
