| Mg-Ni合金的电沉积研究 |
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| 引用本文： | 郝泽铭,宋师伟,陈冲,邓姝皓. Mg-Ni合金的电沉积研究[J]. 矿冶工程, 2011, 31(5): 107-110 |
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| 作者姓名： | 郝泽铭 宋师伟 陈冲 邓姝皓 |
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| 作者单位： | 1.三一重工泵送研究本院, 湖南 长沙 410100; 2.中南大学 材料科学与工程学院, 湖南 长沙 410083 |
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| 摘 要： | 采用电沉积的方法从非水体系和水体系中制备出镁-镍合金, 并且制备了氢氧化镍。X射线衍射、扫描电镜和能谱分析结果表明, 两种体系的沉积层均含有黑色非晶态的镁-镍合金, 呈结瘤状的微观形貌。初步研究了沉积机理以及镁-镍合金的电化学性能, 结果表明, 镁镍合金在两种体系中沉积析出电位均为-2.0 V(vs SCE), 沉积过程不可逆, 非水体系的沉积较水体系困难。水体系脉冲条件下沉积的镁-镍合金氧化还原可逆性良好, 其氢扩散系数很大, 与氢氧化镍组成电池的工作电压较大, 是一类良好的镍氢电池负极材料。
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| 关 键 词： | 储氢合金 镍氢电池 负极材料 Mg-Ni合金 电化学共沉积 |
| 收稿时间： | 2011-03-22 |
Investigation of Electrodeposition of Mg-Ni Alloy |
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| HAO Ze-ming,SONG Shi-wei,CHEN Chong,DENG Shu-hao. Investigation of Electrodeposition of Mg-Ni Alloy[J]. Mining and Metallurgical Engineering, 2011, 31(5): 107-110 |
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| Authors: | HAO Ze-ming SONG Shi-wei CHEN Chong DENG Shu-hao |
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| Affiliation: | 1. Concrete Pump Institute, Sany Heavy Industry, Changsha 410100, Hunan, China; 2. School of Materials Science and Engineering, Central South University, Changsha 410083, Hunan, China |
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| Abstract: | Mg-Ni alloys were synthesized from nonaqueous and aqueous systems by the method of electrodeposition,and nickelous hydroxide was also prepared.The results of X-ray diffraction(XRD),scanning electron microscopy(SEM) and energy spectrum analysis indicated that all the deposition layers in the two systems contained black amorphous Mg-Ni alloy with nodular microstructure.The investigation of the deposition mechanism and electrochemical properties of Mg-Ni alloy showed that the deposition potential of Mg-Ni allo... |
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| Keywords: | hydrogen storage alloy Ni-MH battery cathod material Mg-Ni alloy electrochemical co-deposition |
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