electrochem

options are (select all that apply ) :

A The ratio between the concentrations of F+ and Fc at the electrode surface is

governed by the Nernst equation.

B The current decay from C to D is due to the diffusion layer growing and slowing down

the mass transport of F+ to the electrode.

C The ratio between the bulk concentrations of Fc+ and Fc are governed by the Nernst

equation.

D At points B and E, the concentrations of bulk F+ and Fc are equal.

Which of the following statements is/are CORRECT based on the figure? The original paper can be found here: Elgrishi et al. - 2018 - A Practical Beginner's Guide to Cyclic Voltammetry-annotated.pdf 5 A 1 B1 C1 D1 E B D E E=E, E=E, D E E [C] [C] [C] [C] [o] EEE EE E-E 0 0 0 0 0 d d 0 0 Bulk d 0 0 Bulk d Bulk d Bulk 0 d Bulk E, F F H IC Fc + e-Fc end G. E 100 (C) EE o 0 0 d Bulk Current (A) Time D start A A E=E E Fc Fc + E! 0.3 0.2 0.1 0.0 -0.1 0.2 -0.3 Potential (V vs Fc+/Fc) E TE , 0 Bulk Potential Figure. (A-G): Concentration profiles (MM) for Fc (blue) and Fc (green) as a function of the distance from the electrode (d, from the electrode surface to the bulk solution, e.g. 0.5 mm) at various points during the voltammogram. Adapted from Reference 4. Copyright 2011, Imperial College Press. (H): Voltammogram of the reversible reduction of a 1 mM Fc+ solution to Fc, at a scan rate of 100 mV s-1. (1): Applied potential as a function of time for a generic cyclic voltammetry experiment, with the initial, switching, and end potentials represented (A, D, and G, respectively)