Dear Michel, your answer looks sound. Could you please attach me any papers on this issue. I am quite interesting in this issue.
Dear Mohit and Galal
welcome,
The answer of Michel is okay and i second him. It is so that if you have a metallic electrode in an electrolyte, the metal electrode material has its own conductivity that can normally large. This concerns the electrode material to conduct current upon application of a potential difference or an electric field.
In electrochemistry when an electric current is made to flow from an electrode to an electrolyte, this also needs a specific potential difference for certain current flow across the electrode electrolyte interface. The charge transfer resistance across the interface is characterized by charge transfer resistance Rct.
The flow of current across the interface is controlled by potential barriers formed between the metal and the electrolyte and this barrier controls to large extent Rct.
Please for more information please follow the link: Presentation The properties of electrodes and electrochemical cells for w...
Best wishes
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