D 2e-10[m^2/s] Diffusion coefficient V_app 5[mV] Applied potential A_el 1[mm^2] Electrode area L_el 1[mm] Electrolyte length Cdl 20[uF/cm^2] Double layer interfacial capacitance c_bulk 1[mol/m^3] Bulk concentration k0 0.001[cm/s] Heterogeneous rate constant freq_max 1000[Hz] Maximum frequency xdiff_min sqrt(D/(pi*freq_max)) Mean diffusion layer thickness at maximum frequency