Can water store charge?
Can water store charge?
复制标题
储水罐可以充电吗？
DOI：
10.1021/la802430k
复制
发表时间：
2009
期刊：
影响因子：
--
通讯作者：
Pollack,GeraldH
中科院分区：
文献类型：
--
作者：
Ovchinnikova,Kate;Pollack,GeraldH
该实验室和其他实验室之前的工作已经证明了水中存在很大的pH梯度。通过在浸泡电极之间传递电流建立了电极之间的pH梯度，发现电极之间的pH梯度慢慢消失，在电流关闭后持续数十分钟。我们在这里发现，这些pH梯度反映了真正的电荷分离：有时在断开电源后很长时间，电流可以通过放置在充电电极之间的电阻或位于原始电极之间中线两边的电极对之间吸收。在一些实验中，有可能回收水中的大部分电荷。因此，水似乎具有储存和释放大量电荷的能力。
Previous work from this and other laboratories has demonstrated large pH gradients in water. Established by passing current between immersed electrodes, pH gradients between electrodes were found to disappear slowly, persisting for tens of minutes after the current had been turned off. We find here that these pH gradients reflect a genuine separation of charge: at times well after disconnection of the power supply, current could be drawn through a resistor placed between the charging electrodes or between pairs of electrodes positioned on either side of the midline between original electrodes. In some experiments, it was possible to recover the majority of charge that had been imparted to the water. It appears, then, that water has the capacity to store and release substantial amounts of charge.