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首页> 外文期刊>Journal of Applied Electrochemistry >Inhibiting effect of oxidazied zironiumon parasitic cathodic reactions in thesodium chlorate process part I:Hypochlorite reduction
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Inhibiting effect of oxidazied zironiumon parasitic cathodic reactions in thesodium chlorate process part I:Hypochlorite reduction

机译：氧化锆对氯酸钠工艺中寄生阴极反应的抑制作用第一部分：次氯酸盐还原

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To clariry the effect of oxidized zirconium on parasitic cathodic reactionsin the chlorate porcess,electrochemical studies were carried out at laboratory scale.Thetechniques used were cyclic voltammetry and recording of polarization curves.In this paper there duction of hypochlorite ions to chlorideions was studied.It is shown that oxidized zirconium cathodes reduces the rate of hypochlorite reduction,although not entirely inhibiting it,which is mainly elated to a lowered active area dur to the porous layer of zirconium dioxide.Further,it has also been shown that the oxidized samples are partly passivated,giving high overvoltages for the hydrogen evolution reaction.These overvoltages gradually decrease during cathodic polarization due to the simultaneous reduction of the zirconium oxide.Studies of the selectivity indicate that hypochlorite reduction occurs on the oxidised zirconium cathodes to a high extent,the thermal oxide being somewhat better.This further proves that zirconium oxide is not a suitable cathode material for the sodium clorate porcess.
机译：为了阐明氧化锆对氯酸盐过程中寄生阴极反应的影响，在实验室规模下进行了电化学研究。循环伏安法和极化曲线记录技术被采用。本文研究了将次氯酸盐离子还原为氯离子的方法。表明氧化的锆阴极降低了次氯酸盐的还原速率，尽管没有完全抑制，但主要是由于二氧化锆多孔层的活性面积降低。此外，还表明氧化的样品已部分钝化，由于过氧化锆的同时还原，这些过电压在阴极极化过程中逐渐减小。选择性的研究表明，氧化锆阴极上次氯酸盐的还原程度很高，热氧化物是好一点。这进一步证明了氧化锆e不是氯酸钠溶液的合适阴极材料。

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