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研究了氢中含有不同浓度CO杂质对LaNi4.7Al0.3合金的吸氢动力学曲线及循环性能的影响。结果表明,LaNi4.7Al0.3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,吸氢量降低;随着CO浓度增加,合金的循环性能进一步降低,动力学特性衰退越严重。探讨了被CO毒化造成合金动力学特性衰退的原因。
The hydrogen absorption kinetics curves and cycling performance of LaNi4.7Al0.3 alloy with different concentration of CO in hydrogen were studied. The results showed that the kinetic properties of LaNi4.7Al0.3 degenerated after being poisoned by CO. The hydrogen absorption decreased with the increase of the number of cycles at the same CO concentration. With the increase of CO concentration, the cycling performance of the alloy was further reduced, The more serious. The reasons for the deterioration of kinetics of the alloy due to CO poisoning were discussed.