Singh Gaurav, Saraf Ravi F
Department of Chemical Engineering, University of Nebraska-Lincoln, Lincoln, Nebraska 68588, USA.
J Phys Chem B. 2006 Jun 29;110(25):12581-7. doi: 10.1021/jp0606457.
The ionic charge accumulation at the metal-electrolyte interface is directly measured by using differential interferometry as a function of magnitude and frequency (2-50 kHz) of external electric field. The technique developed probes the ion dynamics confined to the electrical double layer. The amplitude of modulation of the ions is linearly proportional to the amplitude of applied potential. The linearity is observed up to high electrode potentials and salt concentrations. The frequency response of the ion dynamics at the interface is interpreted in terms of the classical RC model.
通过使用微分干涉测量法，直接测量金属-电解质界面处离子电荷积累随外部电场大小和频率（2-50kHz）的变化。所开发的技术探测局限于双电层的离子动力学。离子调制幅度与施加电位幅度呈线性比例关系。在高电极电位和盐浓度下仍能观察到这种线性关系。界面处离子动力学的频率响应根据经典的RC模型进行解释。
