| 氯化物熔体中制取钬铜合金的电极过程 |
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| 引用本文： | 苏育志,杨绮琴,等.氯化物熔体中制取钬铜合金的电极过程[J].广州师院学报,1996(2):34-38. |
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| 作者姓名： | 苏育志 杨绮琴 |
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| 作者单位： | [1]广州师范学院化学系，510400 [2]中山大学化学系，广州510275 |
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| 摘 要： | 用循坏伏安法、恒电位电解断电后的电位－时间曲线、电位阶跃下的电流－时间曲线以及X－射线衍射法进行了在KCl-HoCl3熔体中Ho63 在铜电极上还原形成钬铜合金的电极过程。Ho^3 在铜电极还原时，在形成金属间化合物HoCu5等后才出纯金属钬。测定了HoCu5四种金属间化合物的生成自由能和Ho原子在HoCu5中的扩散系数及扩散活化能。
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| 关 键 词： | 钬铜合金 电极过程 氯化物熔体 生成自由能 扩散系数 扩散活化能 |
Electroreduction of Holmium Ion on the Cathode Copper in Molten KCl-HoCl 3 System |
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| Authors: | Su Yuzhi Yang Qiqin Liu Guankun |
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| Abstract: | Cyclic voltammetry,open current potential-time curve after potentiostatic electrolysis,current-time curve at potential step and x- ray diffraction were used to study the electrode process of Ho 3+ reduced on copper electrode in molten KCl-HoCl 3. The intermetallic compounds of HoCu 5 et al. are formed at first, and Ho-Cu alloy is deposited when Ho 3+ is reduced on the Copper electrode. The formation free eneries of the intermetallic compounds of Ho and Cu, the diffussion coefficients and the diffusion activation energy in its alloy phase are determined. |
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| Keywords: | molten salt Ho-Cu alloys electrolysis electrode process |
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