Exam 8: Nonlinear Eis

An electrochemical reaction is characterized using EIS. In the first experiment, the solution resistance is made negligible by the addition of supporting electrolyte. In the second experiment, the solution resistance is large, due to a lack of supporting electrolyte. All other conditions remain the same. The latter case will differ from the former

The effect of instabilities on EIS data can be identified using ______ (one word)

Polarization resistance can be obtained from

In a given system, EIS was acquired at multiple perturbation amplitudes, and all of them yielded the same data. Therefore, higher harmonics are negligible.

Empirical evidence suggests that direct integration of KKT relations will not flag EIS acquired under large-signal conditions, if

When EIS is acquired experimentally, it is desirable to acquire data for multiple cycles because

Taylor series expansion of sin(x) at x=0, in terms of 'x' is given by

In linear polarization measurement, the slope of current to potential yields

Total harmonic distortion is calculated using

For a reaction with one or more intermediates, at a given perturbation amplitude, the amplitude of oscillation in fractional surface coverage

In case of reaction with adsorbed intermediates, when there is repulsion between the adsorbed species, it is best described by

In NLEIS, frequency response function (FRF)

The value of modified Bessel function of zeroth order, at x= 0 , i.e. I₀(0) is ______

If an electrochemical system is unstable, the effects manifest in impedance spectra mainly at

For a given reaction, impedance under pseudo galvanostatic mode can be calculated using

Charge transfer resistance can be obtained from

Even if there is no reaction at a particular condition in a given system, second harmonics can arise if the double-layer is described by

Taylor series expansion of cos(x) at x=0, in terms of 'x' is given by

When EIS is acquired experimentally, it is desirable to apply sinusoidal perturbation and acquire data after some time because

In case of reaction with adsorbed intermediates, when some sites are energetically favorable compared to other sites, it is best described by