| 氢中杂质CO对LaNi5,LaNi4.7Al0.3,MlNi4.5Al0.5合金PCT特性的影响 |
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| 引用本文： | 桑革,涂铭旌,闫康平,李全安,陈云贵.氢中杂质CO对LaNi5,LaNi4.7Al0.3,MlNi4.5Al0.5合金PCT特性的影响[J].中国稀土学报,2000,18(2). |
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| 作者姓名： | 桑革 涂铭旌 闫康平 李全安 陈云贵 |
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| 作者单位： | 四川大学金属材料系,四川,成都,610065 |
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| 基金项目： | 四川省计委重点攻关，中国工程物理研究院院外基金 |
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| 摘 要： | 研究了 3种贮氢合金 ,即LaNi5 ,LaNi4.7Al0 .3,MlNi4.5 Al0 .5 在纯氢 ( 99 999% )及含 0 0 1%CO气体杂质氢中毒化前后的PCT特性。对于LaNi5 ,毒化后不出现平台 ;对LaNi4.7Al0 .3及MlNi4.5 Al0 .5 合金 ,平台压升高 ,平台倾斜加剧 ,平台宽度缩小 ,饱和吸氢量减小。LaNi5 中加入少量Al后 ,可以提高其抗毒化能力。分析了PCT平台变短、倾斜的原因。
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| 关 键 词： | 稀土 一氧化碳 贮氢合金 PCT特性 |
Influence of CO on PCT Properties of LaNi5, LaNi4.7Al0.3 and MlNi4.5Al0.5 Alloys |
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| SANG Ge,TU Ming-jing,YAN Kang-ping,LI Quan-an,CHEN Yun-gui.Influence of CO on PCT Properties of LaNi5, LaNi4.7Al0.3 and MlNi4.5Al0.5 Alloys[J].Journal of the Chinese Rare Earth Society,2000,18(2). |
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| Authors: | SANG Ge TU Ming-jing YAN Kang-ping LI Quan-an CHEN Yun-gui |
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| Abstract: | The PCT degradation behaviours of LaNi 5, LaNi 4.7 Al 0.3 and MlNi 4.5 Al 0.5 alloys in pure hydrogen and hydrogen containing CO were investigated. PCT plateaus are inclined after poisoning of all these alloys. LaNi 5 has no plateau. The plateaus of LaNi 4.7 Al 0.3 and MlNi 4.5 Al 0.5 alloy are both lifted and inclined, the width of PCT curve are shorter, and the absorbed hydrogen content is reduced drastically after poisoning. The resistance of aluminium substituted alloys to CO is improved. |
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| Keywords: | rare earths CO hydrogen storage alloys PCT |
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