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    • 6. 发明申请
    • OXIDE-ION SENSOR FOR USE IN A MOLTEN-SALT BASED ELECTROCHEMICAL REDUCTION PROCESS
    • 用于基于盐酸电化学还原过程的氧化离子传感器
    • US20110108439A1
    • 2011-05-12
    • US12614470
    • 2009-11-09
    • Karthick Vilapakkam GourishankarAndrew Maxwell PeterHari Nadathur SeshadriAnbarasan Viswanathan
    • Karthick Vilapakkam GourishankarAndrew Maxwell PeterHari Nadathur SeshadriAnbarasan Viswanathan
    • G01N27/26
    • G01N27/4166
    • An oxide-ion sensor includes an oxygen electrode, a sense electrode and a saturated (reference) electrode. The sense electrode is operated at a substantially constant current for determining an instantaneous value of a dissolved oxide-ion concentration in the molten salt electrolyte. The saturated electrode is used to determine a reference value of the dissolved oxide-ion concentration in the molten salt electrolyte. A dissolved oxide-ion concentration in the molten salt electrolyte is continuously monitored in-situ during the molten-salt based electrochemical reduction process by determining an equilibrium potential between the sense electrode and the saturated electrode with the sense electrode carrying a small current in a circuit that is completed using the oxygen electrode. In another embodiment, the dissolved oxide-ion concentration in the molten salt electrolyte is continuously monitored in-situ by determining an electrochemical impedance of the molten salt electrolyte using a pair of bare current-carrying conductors and a frequency response analyzer.
    • 氧化物离子传感器包括氧电极,感测电极和饱和(参考)电极。 感测电极以基本恒定的电流运行,以确定熔融盐电解质中溶解的氧化物离子浓度的瞬时值。 饱和电极用于确定熔融盐电解质中溶解的氧化物离子浓度的参考值。 在熔融盐电化学还原过程中,熔融盐电解液中溶解的氧化物离子浓度通过确定感应电极和饱和电极之间的平衡电位,在电路中承载小电流 使用氧电极完成。 在另一个实施方案中,通过使用一对裸流电导体和频率响应分析仪确定熔融盐电解质的电化学阻抗,原位地连续地监测熔融盐电解质中溶解的氧化物离子浓度。