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陰極摻雜提高熔鹽電脫氧制備鋯電解效率的機(jī)制
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國(guó)家自然科學(xué)基金重點(diǎn)項(xiàng)目(50434030)；國(guó)家重點(diǎn)基礎(chǔ)研究發(fā)展計(jì)劃(“973”計(jì)劃)(2007CB613801)


Mechanism on Increasing Electroanalysis Efficiency by Cathode Doping for the Metal Zirconium Prepared by Electro-Deoxidization in Molten Salt
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    摘要:

    采用熔鹽電脫氧法，在CaCl2熔鹽中，以燒結(jié)的方式摻雜不同摩爾分?jǐn)?shù)CaCO3粉末的ZrO2為陰極，石墨棒為陽(yáng)極，溫度為900 ℃，電壓為3.1 V, 制備出鋯。研究摻雜物及其濃度對(duì)陰極的形貌、電解反應(yīng)的影響。結(jié)果表明：摻雜物CaCO3提高了ZrO2電解脫氧的速度；摻雜還增加電脫氧的有效反應(yīng)面積，使電流效率提高，有效地縮短電脫氧所需的時(shí)間

    Abstract:

    Metal zirconium was prepared by electro-deoxidization method by using CaCl2 molten as electrolyte, sintered ZrO2 and ZrO2 doped different mole CaCO3 pallets as cathode, graphite rod as anode. The pallets were electrolyzed at 900 ℃ and 3.1 V for 8 h. It is found that the rate of electro-deoxidization reaction for ZrO2 and the current efficiency were increased, and the reaction time of Electro-deoxidization was shortened by adding CaCO3.

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李晴宇,杜繼紅,奚正平,李爭(zhēng)顯,楊升紅.陰極摻雜提高熔鹽電脫氧制備鋯電解效率的機(jī)制[J].稀有金屬材料與工程,2009,38(9):1575~1579.[Li Qingyu, Du Jihong, Xi Zhengping,,Li Zhengxian,,Yang Shenghong. Mechanism on Increasing Electroanalysis Efficiency by Cathode Doping for the Metal Zirconium Prepared by Electro-Deoxidization in Molten Salt[J]. Rare Metal Materials and Engineering,2009,38(9):1575~1579.]
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  • 收稿日期:2008-11-28
  • 最后修改日期:2008-12-25
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