| CO毒化LaNi4.7Al0.3贮氢合金的SIMS分析 |
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| 引用本文： | 桑革,涂铭旌,李全安,闫康平,宁永功,陈云贵,唐定骧. CO毒化LaNi4.7Al0.3贮氢合金的SIMS分析[J]. 金属学报, 2000, 36(3) |
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| 作者姓名： | 桑革 涂铭旌 李全安 闫康平 宁永功 陈云贵 唐定骧 |
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| 作者单位： | 四川大学金属材料系,成都,610065 |
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| 基金项目： | 四川省计委重点攻关项目和中国工程物理研究院院外基金项目 |
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| 摘 要： | 应用ＳＩＭＳ方法对ＬａＮｉ４．７Ａｌ０．３贮氢合金被 ＣＯ毒化前后的表面进行了分析，结果表明： ＬａＮｉ４．７Ａｌ０．３贮氢合金毒化前 Ｃ， Ｏ峰不明显，毒化后 Ｏ峰明显增高， Ｃ峰明显出现毒化后生成了 Ｌａ－Ｃ， Ｌａ－Ｃ２和 Ｌａ－Ｏ的强键，并在合金表面形成了一层化合物薄膜，阻止贮氢合金进一步吸氢，导致 Ｌ３Ｎｉ４．７Ａｌ０．３贮氢合金吸氢量下降，吸氢速度降低．
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| 关 键 词： | CO LaNi4.7Al0.3 贮氢合金 表面分析 |
SIMS ANALYSIS OF CO STABLIZATION OF LaNi4.7Al0.3 ALLOY |
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| SANG Ge,TU Mingjing,LI Quan'an,YAN Kangping,NING Yonggong,CHEN Yungui,TANG Dingxiang. SIMS ANALYSIS OF CO STABLIZATION OF LaNi4.7Al0.3 ALLOY[J]. Acta Metallurgica Sinica, 2000, 36(3) |
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| Authors: | SANG Ge TU Mingjing LI Quan'an YAN Kangping NING Yonggong CHEN Yungui TANG Dingxiang |
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| Abstract: | The surface properties of the CO-treated LaNi4.7Al0.3 alloy were studied by secondary . ion mass spectroscopy. Surface compositions were analyzed and compared with that of the untreated sample. After CO treatment, the strong bonds of La-C, La-C2 and La-O formed and the hydrogen storage capacity of LaNi4.7Al0.3 declined during repeated hydrogen/dehydrogen cycling. The degradation behavior of hydrogen absorption kinetics took place. |
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| Keywords: | CO LaNi4.7Al0.3 hydrogen storage alloy surface analysis |
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