Electrochemical hydrogen storage properties of La0.95Mg2.05Ni9 alloy prepared by mechanical alloying
来源期刊：中国有色金属学报(英文版)2004年第3期
论文作者：蒙冕武 刘心宇 成钧 周怀营
文章页码：436 - 440
Key words：mechanical alloying; hydrogen storage material; amorphous alloy; electrochemical properties; thermal stability
Abstract: The structure, microstructure, thermal stability and hydriding characteristics of amorphous La0.95-Mg2.05Ni9 have been investigated with differential thermal analysis, X-ray diffraction, scanning electron microscopy and battery test. It is found that the increase in mechanical alloying time leads to enhancement in thermal stabilities of amorphous La0.95Mg2.05Ni9alloy. The amorphous alloy has good charge/discharge ability at room temperature(430 mA·h·g-1), but the discharge capacity decreases seriously during cycling tests due to the crystallization of amorphous and oxidization of magnesium on the particle surface in alkaline aqueous solution.
