Comparison of Electrochemical and Semiconductor Parameters of the Electrical Double Layer at a Magnetite/Electrolyte Interface

Resumo

This paper presents a comparative analysis of the electrochemical and semiconductor properties of magnetite on a semiconductor/electrolyte interface. It is shown that the solid phase of the oxide has a bulk zone that leads to charge and potential distributions in both the bulk phase and electrolyte solution. The presence of a bulk zone on the magnetite surface is evidenced by the observed linear behavior of 1/C² as a function of E (where C is capacitance and E is potential).