论文标题
纳米电容器从电极电荷波动中频率依赖性阻抗，作为电解质动力学的探测
Frequency-dependent impedance of nanocapacitors from electrode charge fluctuations as a probe of electrolyte dynamics
论文作者
论文摘要
频率依赖性阻抗是电气组件的基本特性。我们表明，可以从恒定电位分子模拟中电极电荷的平衡动力学波动确定，尤其是在低频限制下恢复的电容的波动降低，并在水/金纳米镜头上提供了插图。这项工作为通过微观机制，直接从电解质的动力学或通过等效电路模型而间接地解释了电化学阻抗测量的方式，就像实验中一样。
The frequency-dependent impedance is a fundamental property of electrical components. We show that it can be determined from the equilibrium dynamical fluctuations of the electrode charge in constant-potential molecular simulations, extending in particular a fluctuation-dissipation for the capacitance recovered in the low-frequency limit and provide an illustration on water/gold nanocapacitors. This work opens the way to the interpretation of electrochemical impedance measurements in terms of microscopic mechanisms, directly from the dynamics of the electrolyte, or indirectly via equivalent circuit models as in experiments.
