【摘 要】
：
The microstructure, hydriding performance, and electrochemical properties of LaNi_ 4.0 Al_ 0.2 Fe_ 0.4 Cu_ 0.4-x Sn_x (x= 0～0.4) hydrogen storage alloys prepared
【机 构】
：
Department of Functional Material Research Central Iron and Steel Research Institute,Department of
【出 处】
：
Journal of Rare Earths
论文部分内容阅读
The microstructure, hydriding performance, and electrochemical properties of LaNi_ 4.0 Al_ 0.2 Fe_ 0.4 Cu_ 0.4-x Sn_x (x= 0～0.4) hydrogen storage alloys prepared by casting were investigated using XRD, SEM, pressure-composition isotherms, and electrochemical measurements. Substitution of Sn for Cu leads to the precipitation of LaNiSn phase. With increasing amount of tin substitution, cell volume, plateau pressures, and discharge capacities of the alloys decrease, whereas the cycle life of the alloys improves.
The microstructure, hydriding performance, and electrochemical properties of LaNi_4.0 Al_0.2Fe_0.4Cu_0.4-xSn_x (x = 0 ~ 0.4) hydrogen storage alloys prepared by casting were investigated using XRD, SEM, pressure-composition isotherms, and electrochemical measurements. Substitution of Sn for Cu leads to the precipitation of LaNiSn phase. With increasing amount of tin substitution, cell volume, plateau pressures, and discharge capacities of the alloys decrease, while the cycle life of the alloys improves.
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