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首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >Preparation and electrode properties of new ternary alloys: REMgNi_4 (RE = La, Ce, Pr, Nd)
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Preparation and electrode properties of new ternary alloys: REMgNi_4 (RE = La, Ce, Pr, Nd)

机译：新型三元合金的制备和电极性能：REMgNi_4（RE = La，Ce，Pr，Nd）

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摘要

According to the elemental ratio of Nd;Mg:Ni = 1:1:4, NdMgNi4 ternary alloy was synthesized by sintering pressed tablets of the powders milled for 6 h. The sintering conditions are: 673 K, 3 h - > 873 K, 3 h - > 973 K, 3 h. The XRD analysis shows that the REMgNi_4 (RE = La, Ce, Pr, Nd) alloys are single component alloys, and that Mg_2Ni exists during the process of formation of the alloys. The electrode properties of the REMgNi_4 alloys were measured by simulated battery test. It was found that the initial discharge capacity of Mg_2Ni and LaMgNi_4 alloys milled for 50 h is about 400 mAh/g, but a good cycle life has been observed for the electrode of milled LaMgNi_4 alloy. As to REMgNi_4 alloys, a slightly increasing discharge capacity was observed in the following order: LaMgNi_4 > NdMgNi_4 > CeMgNi_4 > PrMgNi_4.
机译：根据Nd; Mg：Ni = 1：1：4的元素比，通过烧结6 h压制的粉末压片，合成NdMgNi4三元合金。烧结条件为：673 K，3 h-> 873 K，3 h-> 973 K，3 h。 XRD分析表明，REMgNi_4（RE = La，Ce，Pr，Nd）合金为单组分合金，在合金形成过程中存在Mg_2Ni。通过模拟电池测试测量了REMgNi_4合金的电极性能。已发现，研磨50h的Mg_2Ni和LaMgNi_4合金的初始放电容量为约400mAh / g，但是对于研磨的LaMgNi_4合金的电极观察到良好的循环寿命。对于REMgNi_4合金，观察到放电容量按以下顺序略有增加：LaMgNi_4> NdMgNi_4> CeMgNi_4> PrMgNi_4。

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