| 镧镍铜锰吸氢合金的制备与表面性质 |
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| 引用本文： | 高恩庆,王善田.镧镍铜锰吸氢合金的制备与表面性质[J].曲阜师范大学学报,1995,21(1):57-60. |
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| 作者姓名： | 高恩庆 王善田 |
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| 作者单位： | 曲阜师范大学化学系，济宁教育学院，南开大学化学系 |
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| 摘 要： | 用共沉淀还原扩散法制备了新的镧系吸氢合金ＬａＮｉ４Ｃｎ０．５Ｍｎ０．５，借助ＸＰＳ技术研究合金的表面偏析等性质，确定了合金表面的化学组成，讨论了合金在空气中暴露程度对表面性质的影响以及表面性质对合金吸氢性能的影响，并结合吸氢测试研究了合金的活化，提出了ＬａＮｉ４Ｃｕ０．５Ｍｎ０．５的活化机制。
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| 关 键 词： | 吸氢合金 活化机制 镧镍铜锰合金 表面偏析 |
PREPARATION AND SURFACE PROPERTIES OF A La-Ni-Cu-Mn HYDROGEN-ABSORBING ALLOY |
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| Gao Enqing, Wang Shantian, Li Yantuan, Shen Panwen.PREPARATION AND SURFACE PROPERTIES OF A La-Ni-Cu-Mn HYDROGEN-ABSORBING ALLOY[J].Journal of Qufu Normal University(Natural Science),1995,21(1):57-60. |
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| Authors: | Gao Enqing Wang Shantian Li Yantuan Shen Panwen |
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| Abstract: | A quarternary hydrogen-absorbing alloy LaNi_4Cu_(0.5)Mn_(0.5) was prepared usingCoprecipitation-Reduction-Diffusion Method. Surface properties of the alloy such as surfacespecies and surface segregation were studied by means of X-ray photoelectron spectroscopy,and the results were compared with those of previous studies on LaNi_5.Influence of surfaceproperties of the alloy on its hydriding kinetics was discussed.The activation of the alloy wasinvestigated,and an activation mechanism was proposed. |
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| Keywords: | La-Ni-Cu-Mn hydrogen-absorbing alloy coprecipitation-reduetion-dif-fusion method surface properties activation mechanism |
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