Mg-based high-entropy reversible hydrogen storage alloy and preparation method thereof

摘要: The invention discloses an Mg-based high-entropy reversible hydrogen storage alloy and a preparation method thereof, belongs to the technical field of storage. chemical formula thereversible is Mg2TiNiCrXY (X Y are any two kinds Fe, V, Mn Cu). According formula, raw material powder weighed taken, purity single metal larger than 99%, particle size 200 meshes. poured into ball mill tank, wet ball-milling conducted for 100-120 h, ball-to-powder weightratio 20:1, control agent normal heptanes, rotating speed 300-500 rpm. After milling completed, tank cover taken down in glove box vacuumizing conducted, obtained. An system has high capacity (1.25-4.0 wt.%) room-temperature discharge capacity,and advantages that technology simple easy control, production equipment investment less, price low, generates no pollution, mass easy.