Characterization and electrocatalytic properties of cobalt hexacyanoferrate films

Electrodes modified with cobalt(II) hexacyanoferrate films were synthesized in solutions of various sodium ion concentrations by consecutive cyclic voltammetry. In a 0.1 M NaNO3 electrolyte solution, the voltammetric response was characterized by a single redox couple, while in a 1.0 M NaNO3 electrolyte solution two distinct redox couples appeared. Film characteristics dependent on the hexacyanoferrate: cobalt(II) ratio were also investigated....