2的導(dǎo)電機(jī)制?；趯?shí)驗(yàn)和計算結(jié)果,設(shè)計了多層陰極。多層TiO2陰極經(jīng)6 h的電解后,得到了含氧量在3 500-4 000 ppm的金屬鈦,且各片產(chǎn)物沒有明顯差別。相比傳統(tǒng)的陰極制備方法,電解速度得到有效提高。并且多層陰極解決了電解速度與產(chǎn)量的矛盾,為熔鹽電解法的工業(yè)應(yīng)用提供了有益的參考。"/>

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熔鹽電解法制備金屬鈦的氧空位導(dǎo)電機(jī)制和陰極結(jié)構(gòu)的研究
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重慶大學(xué)

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TF111

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重慶大學(xué)教改項(xiàng)目(0220001104470)；重慶市教委科學(xué)技術(shù)研究項(xiàng)目(KJQN201800106)


Study on the mechanism of conductivity of oxygen vacancy and cathode structure of FFC process
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Chongqing University

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    摘要:

    熔鹽電解法制備金屬鈦是取代高污染,高能耗的傳統(tǒng)金屬鈦冶煉方法的重要工藝。但是,熔鹽電解法所需時間長,效率低,是阻礙該法發(fā)展的瓶頸問題。因此,本文以提升脫氧速度為目標(biāo),首先研究了試片厚度對反應(yīng)速度的影響,再配合采用量子化學(xué)方法,研究了TiO2的導(dǎo)電機(jī)制?；趯?shí)驗(yàn)和計算結(jié)果,設(shè)計了多層陰極。多層TiO2陰極經(jīng)6 h的電解后,得到了含氧量在3 500-4 000 ppm的金屬鈦,且各片產(chǎn)物沒有明顯差別。相比傳統(tǒng)的陰極制備方法,電解速度得到有效提高。并且多層陰極解決了電解速度與產(chǎn)量的矛盾,為熔鹽電解法的工業(yè)應(yīng)用提供了有益的參考。

    Abstract:

    The FFC process is an important method to replace the traditional titanium preparation methods that high pollution and high energy consumption. However, low efficiency and long electrolysis time hinder the development of the FFC process. Therefore, in order to improve the deoxidation rate, the effect of cathode thickness on the deoxidation rate was studies. Meanwhile, the quantum mechanics method was used to study the conduction mechanism of TiO2. Based on the experimental and calculated results, a multi-layer cathode was proposed to improve the deoxidation rate. The titanium sponge with 3 500-4 000 ppm oxygen content was obtained after 6 h electrolysis. The electrolysis speed is effectively improved when compared to the tradional cathode. Another benefit of multi-layer cathode is to slove the problem of contradiction between deoxidation rate and production of FFC process.

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但林陽,劉 楠,李澤全,李雪敏.熔鹽電解法制備金屬鈦的氧空位導(dǎo)電機(jī)制和陰極結(jié)構(gòu)的研究[J].稀有金屬材料與工程,2020,49(8):2773~2778.[Dan Linyang, Liu Nan, Li Zequan, Li Xuemin. Study on the mechanism of conductivity of oxygen vacancy and cathode structure of FFC process[J]. Rare Metal Materials and Engineering,2020,49(8):2773~2778.]
DOI：10.12442/j. issn.1002-185X.20190586

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  • 收稿日期:2019-07-12
  • 最后修改日期:2019-09-17
  • 錄用日期:2019-10-11
  • 在線發(fā)布日期: 2020-09-27
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