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采用熔盐电脱氧法,在CaCl2熔盐中,以烧结的方式掺杂不同摩尔分数CaCO3粉末的ZrO2为阴极,石墨棒为阳极,温度为900℃,电压为3.1V,制备出锆。研究掺杂物及其浓度对阴极的形貌、电解反应的影响。结果表明:掺杂物CaCO3提高了ZrO2电解脱氧的速度;掺杂还增加电脱氧的有效反应面积,使电流效率提高,有效地缩短电脱氧所需的时间。
The molten salt deoxidation method, CaCl2 molten salt, doped with different molar fractions of CaCO3 powder sintering ZrO2 cathode, graphite rod anode, a temperature of 900 ℃, a voltage of 3.1V, prepared zirconium. The effects of dopants and their concentrations on the morphology and electrolysis of the cathode were investigated. The results show that the addition of CaCO3 increases the rate of electrolytic deoxidation of ZrO2. The doping also increases the effective reaction area of the electro-deoxidation, increases the current efficiency and shortens the time required for electro-deoxidation effectively.