A Study of the Mass Transport and Charge Propagation in the Cobalt Oxide Nanoflakes

A simple and efficient method was reported for the synthesis of conalt (II) oxide nanoflakes. Morphology and chemical structure of the nanoflakes were evaluated by different electron microscopy methods (scanning and transmission), X-ray diffraction, scanning tunneling microscopy and electrochemical methods. A comprehensive study on the electrochemical behavior of the nanoflakes at an interface with electrolyte, charge propagation and mass transport (counter ion diffusion) processes in the nanoflakes and the kinetic and mechanism of electrochemical reactions were performed by cyclic voltammetry and electrochemical impedance spectroscopy. Electrochemical reaction rate constants and counter cation diffusion coefficient into the nanoflakes at different potentials were reported.