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| 1 | 退火对稀土系AB_5低钴贮氢合金的影响显示文摘为提高多元替代低钴贮氢合金MlNi3.8Al0.27Mn0.36Co0.24Cu0.15Cr0.1Zn0.05Fe0.05的电化学性能,研究了850℃与1050℃两种温度退火对合金的微观结构、组织以及电化学性能的影响。XRD分析表明,退火降低了合金的晶格应力和缺陷,同时使得合金的单胞体积增大。电化学测试结果表明,退火合金的放电容量明显提高,其中1050℃退火后合金的最大放电容量达到315mAh/g,比铸态合金提高26mAh/g。退火使得合金的高倍率放电性能略有降低,但仍达到96%,退火提高了合金的循环稳定性。 | 李守英 李全安 李克杰 胡瑞松 | 2006 | 材料热处理学报2006，27，3： | 3 |
| 2 | 快淬对低钴贮氢合金的电化学性能影响显示文摘为改善低钴贮氢合金的综合电化学性能,对其进行不同速度的快淬处理。结果表明,合适的快淬速度不仅可以大幅度的提高放电容量,而且明显的改善合金的循环稳定性和放电电压特性。18 m/s快淬低钴合金具有较好的综合电化学性能,但快淬使合金的活化性能有所降低。利用X射线、扫描电镜对铸态及快淬合金进行微观分析。分析了快淬对低钴贮氢合金电化学性能的影响机理。 | 李守英 李全安 李克杰 | 2006 | 铸造技术2006，27，7： | 2 |
| 3 | LaNiAl储氢合金表面镀铜与SiO2包覆改性研究显示文摘采用电弧熔炼铸造LaNiAl储氢合金,研究了退火处理、退火合金表面镀铜和包覆二氧化硅对合金性能的影响。结果表明:合金退火处理后衍射峰的强度增强,衍射晶面的半高宽减小,说明在退火过程中偏析元素发生扩散,消除了偏析晶枝,合金变得均匀,表面更为光滑;包覆前后表面组成由La,Ni和Al的富集到Si和O的富集表明Si以SiO2的形式包覆在粉末的表面。改性处理后的LaNiAl合金试样表现出良好的性能,其中退火合金镀铜处理后的性能最好,放电电压高、平台长;包覆二氧化硅处理后放电电压降低,但放电平台最长。退火处理、退火后镀铜和SiO2包覆处理试样的25次循环容量衰减分别为7%,4%和5%,而未处理的铸造合金衰减21.8%。 | 唐有根 谢正和 万伟华 唐仁英 | 2008 | 稀有金属材料与工程2008，37，2： | 1 |
| 4 | Structure and electrochemical properties of hypo-stoichiometric hydro-gen storage alloys prepared by twin-roller rapid quenching process显示文摘The stoichiometric alloy MlB5.0 and the hypo-stoichiometric alloy MlB4.85 were prepared by twin-roller rapid quenching process, and their structure and electrochemical properties were studied. The results of XRD show that both of the alloys have a typical single-phase hexagonal CaCu5-type structure. The cell volume of the hypo-stoichiometric alloy MlB4.85 is slightly larger than that of the stoichiometric alloy MlB5.0, although its lattice constant c/a is smaller. Under 2 C discharging rate, i.e. 640 mA/g, the MlB4.85 has a discharge capacity of 320 mAh/g, which is higher than that of the MlB5.0, 312 mAh/g. Nevertheless, the capacities of the MlB4.85 and the MlB5.0 decline 24.7% and 20.2% after 400 cycles, respec- tively. The relationship of electrochemical performances of the alloys with their structures is discussed. | ZHOU Liu LU Dongsheng LI Weishan HU Shejun CAI Yuepeng TANG Renheng XIAO Fangming | 2005 | Rare Metals2005，24，4： | 1 |
| 5 | 稀土系贮氢合金的快淬及退火研究进展显示文摘快淬及退火对贮氢合金的组织和电化学性能影响很大。详细综述了近年来稀土系贮氢合金的各种快淬和退火工艺,以及不同工艺对合金电化学性能和组织的影响,旨在为提高贮氢合金的电化学性能提供思路和依据。 | 李守英 李全安 李克杰 张清 张兴渊 文九巴 | 2005 | 材料导报2005，19，9： | 0 |
| 6 | Effect of different additives on the properties of lithium alanate显示文摘LiAlH4 doped with Ni and Ce(SO4)2 additives and the effect of doping on temperature and hydrogen release were studied by pressure-content-temperature (PCT) experiment and X-ray diffraction (XRD) analysis. It is indicated that doping with Ni induces a significant decrease in temperature in the first step and LiAlH4 doped with 1mol% Ni presents the most absorption of hydrogen. Doping with Ce(SO4)2 also causes a marked decrease, while the amount of hydrogen release changes only slightly. The results from X-ray diffraction analysis show that doping does not cause any structural change; Ni and Ce-containing phases are not observed at room temperature or even at 250°C. | Xueping Zheng Ping Li Xuanhui Qu LS. Humail Yanghuan Zhang Guoqing Wang | 2008 | Journal of University of Science and Technology Beijing2008，15，6： | 0 |
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