Electrolysis with a drooping mercury cathode. Part I. Deposition of alkali and alkaline earth metals.
Electrolysis with a drooping mercury cathode. Part I. Deposition of alkali and alkaline earth metals.
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DOI：
10.1080/14786442308634117
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发表时间：
1923-02-01
影响因子：
1.6
通讯作者：
Heyrovsky, J
中科院分区：
文献类型：
--
作者：
Heyrovsky, J
B。KUCERA（Drud. Ann. vol. xi. p. 529，1903）表明，极化汞的表面张力的变化，即”电毛细管抛物线”，可以非常准确地由滴重确定。在这种方法中，从玻璃毛细管中缓慢滴入的汞在水溶液中被极化，另一个电极是覆盖在容器底部的汞层。在使用滴汞作为阴极时，观察到在中性或碱性溶液中即使在高极化下也不析氢。因此，这种布置似乎便于研究大多数“正”金属的阴极沉积，这些金属被水吸附。滴汞电极除过电压高外，还有其它优点：由WC McC教授主持。刘易斯。
B. KUCERA (Drud. Ann. vol. xi. p. 529, 1903) showed that the change of surface-tension of polarized mercury, ie, the" Electrocapillary parabola," can be very exactly determined by drop-weight. In this method, mercury dropping slowly from a glass capillary in an aqueous solution is polarized, the other electrode being the layer o [mercury covering the bottom of the vessel.In using the dropping mercury as cathode, i~ has been observed that iu neutral or alkaline solutions hydrogen is not evolved even at high pol~/rizations. This arrangement seemed thus convenient to study the cathodic deposition of the most" positive" metals, which are o~ herwise att'tcked by water. Besides the high over-voltage the dropping mercury electrode possesses other advantages: it yields in* Communic.~ ted by Prof. WC McC. Lewis.