High-temperature Reference Electrodes Used in Molten Fluorides
来源期刊：Rare Metals1993年第3期
论文作者：王新东 段淑贞 ChristensenE. BjerrumN.J.
文章页码：170 - 174
摘 要：<正> The thermodynamic and dynamic behaviour of Ni2+|Ni couple in FLINAK melt is investigated by us-ing EMF measurement and micropolarization method.The couple shows the Nernstian reversibility and alarge exchange current density(6 mA·cm-2).A single crystal LaF3 which is a fluoride ion conductor usedas a membrane of the Ni2+|Ni couple reference electrode is reliable in FLINAK melts at 973 K.The poten-tial of LaF3 membrane reference electrode is constant within±2 mV.The boron nitride used as a saltbridge was not good in FLINAK melts.The platinum electrode is studied by using micropolarization.Theequilibrium potential of Pt electrode is dependent on the absorption and the electrochemical reaction.Thepotential is stable for a constant composition at constant temperature.
王新东，段淑贞，ChristensenE.，BjerrumN.J.
摘 要：<正> The thermodynamic and dynamic behaviour of Ni2+|Ni couple in FLINAK melt is investigated by us-ing EMF measurement and micropolarization method.The couple shows the Nernstian reversibility and alarge exchange current density(6 mA·cm-2).A single crystal LaF3 which is a fluoride ion conductor usedas a membrane of the Ni2+|Ni couple reference electrode is reliable in FLINAK melts at 973 K.The poten-tial of LaF3 membrane reference electrode is constant within±2 mV.The boron nitride used as a saltbridge was not good in FLINAK melts.The platinum electrode is studied by using micropolarization.Theequilibrium potential of Pt electrode is dependent on the absorption and the electrochemical reaction.Thepotential is stable for a constant composition at constant temperature.
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