| 75%La(Ni_(0.85)Co_(0.15))_(5-x)(Mn_(0.4)Al_(0.3))_x+12.5%Mg_2Ni(x=0,0.3,0.6)合金储氢性能研究 |
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| 引用本文： | 张丹丹,高召习,伍倩倩,冉辉,蓝志强,郭进.75%La(Ni_(0.85)Co_(0.15))_(5-x)(Mn_(0.4)Al_(0.3))_x+12.5%Mg_2Ni(x=0,0.3,0.6)合金储氢性能研究[J].广西科学,2010,17(2):129-131. |
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| 作者姓名： | 张丹丹 高召习 伍倩倩 冉辉 蓝志强 郭进 |
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| 作者单位： | 广西大学物理科学与工程技术学院,广西南宁,530004 |
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| 基金项目： | 国家自然科学基金，广西自然科学基金，广西研究生科研创新项目 |
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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%。
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| 关 键 词： | 合金 La-Mg-Ni基储氢合金 储氢性能 循环寿命 |
| 收稿时间： | 2009/11/5 0:00:00 |
| 修稿时间： | 2010/3/16 0:00:00 |
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 and 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. |
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| Authors: | ZHANG Dan-dan GAO Zhao-xi WU Qian-qian RAN Hui LAN Zhi-qiang and GUO Jin |
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| Institution: | ZHANG Dan-dan,GAO Zhao-xi,WU Qian-qian,RAN Hui,LAN Zhi-qiang,GUO Jin(College of Physical Science and Technology,Guangxi University,Nanning,Guangxi,530004,China) |
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| 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 cha... |
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| Keywords: | alloy La-Mg-Ni based alloy hydrogen-storage characteristics cycle life |
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