【摘要】 LaNi₅具有良好的储氢性能,有望成为氘氚燃料供给的重要候选材料。由于其性能易受杂质气体毒化,为了认识LaNi₅本征碳杂质的影响,采用低碳LaNi₅合金研究了循环吸放氢过程中的碳行为。结合色谱、XRD、ICP等手段,分析了气体成分和LaNi₅的物相、组成及储氢性能。结果表明,碳在吸氢过程中逐渐转变为CH₄,并积累在腔体中,未对LaNi₅的性能造成直接影响。更多还原

【Abstract】 LaNi₅ is an important candidate material for deuterium/tritium fuel supplying, which shows good hydrogen storage performance. It is easy to poison by impurity gas so that the carbon behavior in mild LaNi₅ alloy using repeated hydrogen absorption and desorption was studied in order to explore the effect of nature carbon impurity. Combined with chromatogram, XRD and ICP, the gas composition and the phase, composing and hydrogen storage properties of LaNi₅ were analyzed. The results show that the carbon gradually transformed to CH₄ during hydrogen absorbing process, and cumulateed in chamber, which did not directly affect the properties of LaNi₅ alloy.更多还原