Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
(a) Cyclic voltammograms of 5 mM K3[Fe(CN)6]/K4[Fe(CN)6]/0.1 M KCl on the bare gold electrode and after modification steps at a scan rate of 100 mV/s; (b) Impedance spectra for 5 mM K3[Fe(CN)6]/K4[Fe(CN)6]/0.1 M KCl registered at the formal potential of the redox couple [Fe(CN)6]3-/4- on the bare gold electrode and after modification steps; (c) the equivalent electric circuit (EEQC) model applied to fit the impedance measurements.
