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在２２～６０℃范围内研究了贮氢合金ＭｍＮｉ＿（３．５５）Ｃｏ（０．７５）Ｍｎ＿（０．４）Ａｌ＿（０．３）（Ｍｍ为富铈混合稀土金属）在ａ和。ａ＋β相区恒温吸氢动力学过程。研究结果表明，合金在ａ相区吸氢受化学反应控速，动力学规律不受氢初压的影响。在整个ａ＋β相区吸氢过程中，受氢在合金氢化物中的扩散控速。得到相应的速率方程和表观活化能。
The hydrogen storage alloys MmNi_ (3.55) Co (0.75) Mn_ (0.4) Al_ (0.3) (Mm is a cerium - rich mixed rare earth metal) in a and. a + β phase region constant temperature hydrogen absorption kinetics. The results show that the hydrogen absorption rate of the alloy in the a-phase region is controlled by the chemical reaction and the kinetics are not affected by the hydrogen initial pressure. During hydrogen absorption in the a + β phase region, the diffusion rate of hydrogen in the alloy hydride is controlled. Get the corresponding rate equation and apparent activation energy.