| 引用本文： |
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张丹丹,高召习,伍倩倩,冉辉,蓝志强,郭进.75% La(Ni0.85Co0.15)5-x(Mn0.4Al0.3)x+12.5% Mg2Ni(x=0,0.3,0.6)合金储氢性能研究[J].广西科学,2010,17(2):129-131. [点击复制]
- ZHANG Dan-dan,GAO Zhao-xi,WU Qian-qian,RAN Hui,LAN Zhi-qiang,GUO Jin.Study on the Hydrogen-storage Characteristics of 75%La (Ni0.85Co0.15)5-x (Mn0.4Al0.3)x+12.5%Mg2Ni (x=0,0.3,0.6)Alloys[J].Guangxi Sciences,2010,17(2):129-131. [点击复制]
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| 摘要: |
| 利用高频感应熔炉制备摩尔比率为75%La(Ni0.85Co0.15)5-x(Mn0.4Al0.3)x+12.5%Mg2Ni(x=0, 0.3,0.6)合金,测试合金的储氢性能,分析Mn、Al元素组合对合金储氢性能的影响。结果发现,合金均由多相组成,其中主相分别是CaCu5型的LaNi5相和PuNi3型的(La,Mg)Ni3相。随着元素(Mn,Al)含量增大,合金电极的循环稳定性有一定的改善,80次循环放电容量保持率从x=0时的59.1%提高到x=0.6时的74.5%。 |
| 关键词: 合金 La-Mg-Ni基储氢合金 储氢性能 循环寿命 |
| DOI： |
| 投稿时间：2009-11-05修订日期：2010-03-16 |
| 基金项目:国家自然科学基金项目(50561002,50861003)、广西自然科学基金项目(桂科自0728028)和广西研究生科研创新项目(编号:10593090308)资助。 |
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| Study on the Hydrogen-storage Characteristics of 75%La (Ni0.85Co0.15)5-x (Mn0.4Al0.3)x+12.5%Mg2Ni (x=0,0.3,0.6)Alloys |
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ZHANG Dan-dan, GAO Zhao-xi, WU Qian-qian, RAN Hui, LAN Zhi-qiang, GUO Jin
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| (College of Physical Science and Technology, Guangxi University, Nanning, Guangxi, 530004, China) |
| Abstract: |
| The 75%La (Ni0.85Co0.15)5-x (Mn0.4Al0.3)x+12.5%Mg2Ni (x=0, 0.3,0.6)alloys were prepared by high frequency induction furnace and their hydrogen-storage characteristics were tested systematically.The result showed that the alloys consist of multi-phases, and the main phases were LaNi5 phase with a hexagonal CaCu5-type structure and LaNi3 phase with PuNi3-type structure, and the stability of charging-discharging cycle was improved as the content of metals (Mn, Al) increased.The discharge capacity retention after 80 charging-discharging cycles increased from 59.1% (x=0) to 74.5% (x=0.6). |
| Key words: alloy La-Mg-Ni based alloy hydrogen-storage characteristics cycle life |
