但林阳,刘 楠,李泽全,李雪敏.熔盐电解法制备金属钛的氧空位导电机制和阴极结构的研究[J].稀有金属材料与工程,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.]
熔盐电解法制备金属钛的氧空位导电机制和阴极结构的研究
投稿时间:2019-07-12  修订日期:2019-09-17
中文关键词:  熔盐电解法  二氧化钛  氧空位  几何参数
基金项目:重庆大学教改项目(0220001104470);重庆市教委科学技术研究项目(KJQN201800106)
中文摘要:
      熔盐电解法制备金属钛是取代高污染,高能耗的传统金属钛冶炼方法的重要工艺。但是,熔盐电解法所需时间长,效率低,是阻碍该法发展的瓶颈问题。因此,本文以提升脱氧速度为目标,首先研究了试片厚度对反应速度的影响,再配合采用量子化学方法,研究了TiO2的导电机制。基于实验和计算结果,设计了多层阴极。多层TiO2阴极经6 h的电解后,得到了含氧量在3 500-4 000 ppm的金属钛,且各片产物没有明显差别。相比传统的阴极制备方法,电解速度得到有效提高。并且多层阴极解决了电解速度与产量的矛盾,为熔盐电解法的工业应用提供了有益的参考。
Study on the mechanism of conductivity of oxygen vacancy and cathode structure of FFC process
英文关键词:molten salt electrolysis  TiO2, oxygen vacancy, geometry parameter.
英文摘要:
      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.
作者单位E-mail
但林阳 重庆大学 nanl@cqu.edu.cn 
刘 楠 重庆大学 nanl@cqu.edu.cn 
李泽全 重庆大学  
李雪敏 重庆大学  
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