CO对MlNi4.5Al0.5合金吸氢动力学特性的影响

稀有金属, 2001, 25(3): 178-180. doi: 10.3969/j.issn.0258-7076.2001.03.005

CO对MlNi4.5Al0.5合金吸氢动力学特性的影响

桑革 ^1, , 罗学建 ^2, , 李全安 ^3, , 闫康平 ^4, , 涂铭旌 ^5, , 陈云贵 ^6, , 李宁 ^7,

1.中国工程物理研究院,

2.中国工程物理研究院,

3.四川大学西区金属材料系,

4.四川大学西区金属材料系,

5.四川大学西区金属材料系,

6.四川大学西区金属材料系,

7.四川大学西区金属材料系,

基金项目: 四川省计委科技攻关项目中国工程物理研究院科技基金

关键词：稀土金属 , 贮氢合金 , 动力学 , 毒化 , CO

Effect of CO Impurity on Hydrogen Absorption Kinetics of MlNi4.5Al0.5

研究了氢中含有不同浓度 CO 杂质对 MlNi4.5Al0.5的动力学曲线及循环性能的影响。MlNi4.5Al0.5被 CO毒化后动力学性能退化，同一CO 浓度下随着循环次数的增加，动力学性能退化加剧，随着 CO浓度增加，合金的循环性能降低，动力学曲线衰退严重。探讨了被CO 毒化合金动力学曲线衰退的原因。

The degradation behavior of hydrogen-absorbing kinetics and hydriding-dehydriding cycling in different concentration mixed gases(H2-0.01% CO and H2-0.1% CO) were investigated. It is shown that the properties of kinetics of MlNi4.5Al0.5 are degraded in hydrogen contatining CO as impurity. The amount of the hydrogen absorbed decreases continuously as the number of cycles is increased under the same concentration of CO. The higher of concentration of CO is, the lower the cycling properties and kinetics for MlNi4.5Al0.5. The reason for degradation behaviors of MlNi4.5Al0.5 was analyzed.

参考文献

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