| LiF-SrF2-SrO熔盐体系中Sr2+电化学行为的研究 |
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| 引用本文： | 杨凤丽,王浩然,杨少华,王君,赖晓晖. LiF-SrF2-SrO熔盐体系中Sr2+电化学行为的研究[J]. 有色金属科学与工程, 2016, 0(5). DOI: 10.13264/j.cnki.ysjskx.2016.05.006 |
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| 作者姓名： | 杨凤丽 王浩然 杨少华 王君 赖晓晖 |
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| 作者单位： | 江西理工大学冶金与化学工程学院,江西 赣州,341000 |
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| 基金项目： | 国家自然科学基金资助项目(51164013)；江西理工大学冶金与化学工程学院学科建设经费(3304000014) |
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| 摘 要： | 在电化学工作站AUTOLAB 上采用三电极体系以循环伏安法、计时电流法和计时电位法研究了LiF-SrF2-SrO熔盐体系于1253 K温度下锶在钨电极上的电化学还原过程及其控制步骤.研究结果表明：Sr2+在钨电极上的还原过程是一步得两个电子的准可逆反应，析出电位在-1.0 V 附近.阴极过程受离子的扩散步骤控制，计算得出扩散系数为6.07×10-5 cm2/s.
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| 关 键 词： | 熔盐 阴极过程 电化学 扩散控制 锶合金 |
Electrochemical behavior of Sr2+in LiF-SrF2-SrO molten salt system |
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| Abstract: | The electrochemical reduction process and control procedure of Sr2+on tungsten electrode at 1 253 K in LiF-SrF2-SrO molten system was studied by cyclic voltammetry, chronoamperometry and chronopotentiometry methods using three-electrode system and electrochemical workstation AUTOLAB. The results show that the reduction potential of strontium ion is around -1.0 V on tungsten electrode compared with platinum electrode. The reduction process of strontium ion on tungsten electrode is observed in a single step with the exchange of two electrons. The chronoamperograms indicate that the cathode process is controlled by the diffusion step of ions and the diffusion coefficient is 6.07×10-5 cm2/s. |
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| Keywords: | molten salt cathode process electrochemical electrochemistry diffusion control strontium alloy |
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