| NaCl-KCl-Na_2WO_4-CuO体系电解制备钨铜复合粉体研究 |
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| 引用本文： | 王旭,廖春发,肖志华.NaCl-KCl-Na_2WO_4-CuO体系电解制备钨铜复合粉体研究[J].江西有色金属,2012(5):34-38. |
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| 作者姓名： | 王旭 廖春发 肖志华 |
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| 作者单位： | [1]江西理工大学冶金与化学工程学院,江西赣州341000 [2]江西理工大学应用科学学院,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（51074081） |
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| 摘 要： | 文中研究采用熔盐电解以由Na2WO4和CuO为活性物质电解获得钨铜合金复合前驱粉体.通过循环伏安法对电解质体系及电极过程进行定性分析认为Na2WO4减缓体系活性物质扩散速度,CuO与Na2WO4的电解非同步进行.通过改变活性物质的加入方式进行对比实验,结果表明：在温度750℃;以一定比例KCl-NaCl混合熔盐为电解质,在起始槽电压1 V,先加入CuO电解2 h;后加入Na2WO4,调整槽电压至2 V电解3 h,对产物进行X射线衍射（XRD）和扫描电镜（SEM）及能谱分析（EDS）表明,可以获得纯度达到98%的W-Cu合金粉体.
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| 关 键 词： | 熔盐电解 钨铜合金 电极过程 槽电压 |
Tungsten-copper alloy powder preparation in KCI-NaCI-NaeWO4-CuO system by molten salt electrolysis |
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| WANG Xua,LIAO Chun-faa,XIAO Zhi-hua.Tungsten-copper alloy powder preparation in KCI-NaCI-NaeWO4-CuO system by molten salt electrolysis[J].Jiangxi Nonferrous Metals,2012(5):34-38. |
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| Authors: | WANG Xua LIAO Chun-faa XIAO Zhi-hua |
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| Affiliation: | b School of Metallurgy and Chemical Engineering; h. Faculty of Applied Science, Jiangxi University of Science and Technology, Ganzhou 341000, China) |
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| Abstract: | Thermodynamic properties of electrolysis process were studied by cyclic voltammetry. The results show that the electrode reactions in the stable electrolysis region are irreversible. The diffusion velocity of Na2WO4 is an important factor of restricting electrolysis rate. CuO was added into the KCl- NaCl mixed salt electrolyte and cell voltage 1 V for 2 h at the temperature of 750 ℃. Then Na2WO4 was added and cell voltage 2 V for 3 h. X-ray diffraction（XRD）and Scanning Electron Microscope（SEM）and EDS show that tungsten-copper alloy powder can be prepared cathode and purity can achieve 98 % |
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| Keywords: | molten salt electrolysis tungsten-copper alloy electrode process cell voltage |
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