稀土金属间化合物,特别是那些和 LaNi_5有关的,被用来可逆性地储蓄氢。这些材料在普通压力下具有高的储氢能力,并且呈现恒压解吸等温线。用其它镧系或3d 金属时,它们的性能可随着改变。对于储氢设备,氢气压缩机及太阳系统加热和冷却设备中的能量转换器,皆是根据这些原料能可逆地吸收氢的能力而设计出来的。在所有这些应用中要求具 Rare earth intermetallic compounds, especially those related to LaNi_5, are used to reversibly store hydrogen. These materials have high hydrogen storage capacity under normal pressure and exhibit constant pressure desorption isotherms. With other lanthanides or 3d metals, their properties can change. Hydrogen storage equipment, hydrogen compressors, and energy converters in solar heating and cooling equipment are all designed based on the ability of these materials to absorb hydrogen reversibly. Required in all these applications