论文部分内容阅读
研究熔融氟氢化钾(KF·2HF)中微量水分和固态氟化锂对阳极效应的影响,发现当熔融体中水含量相对较大时,阳极效应容易发生,且与氟化锂是否存在无关,因为此时在阳极表面形成了氟碳化合物膜。通过预电解使水的含量减少至0.02%以下时,悬浮在熔融体中的氟化锂的作用才首先表现出来。在这个条件下即使不含氟化锂,达到效应的时间也很长,因为这种条件使氟碳化合物膜最难形成,且在石墨里有 HF_2~-电化嵌入(the electrchemical intercalatiom)发生。当氟化锂含量为3~6%(重量)时,不会发生阳极效应,而且除了 HF_2~-电化嵌入外还有 F_2嵌入存在。
The effect of trace moisture and solid lithium fluoride on the anodic effect in molten potassium bifluoride (KF · 2HF) was investigated. It was found that the anodic effect easily occurs when the water content in the melt is relatively large, and has no relation with the existence of lithium fluoride. Because at this time a fluorocarbon film was formed on the surface of the anode. The effect of lithium fluoride suspended in the melt is first demonstrated by reducing the water content below 0.02% by pre-electrolysis. Under this condition, even without the lithium fluoride, the time taken for the effect is long because this condition makes the fluorocarbon film the hardest to form and there is HF 2 - electrification intercalatiom in the graphite. When the lithium fluoride content is 3 ~ 6% by weight, the anode effect does not occur, and there is F_2 intercalation in addition to the HF_2 ~ -electrochemical intercalation.