The Influence of “Inert” Electrolyte Species on the Electrocatalytic Performance of Electrodes

The structure of the electric double layer (EDL) at the electrified solid/liquid interface is considered to be of paramount importance in governing the performance of various systems. For instance, the activity of electrocatalysts changes significantly even in the presence of “inert” cations or anions. One way to characterize the EDL is to measure its capacitance using electrochemical impedance spectroscopy (EIS). In our group we utilize EIS to investigate the double layer capacitance of various single crystalline model electrode systems in various electrolytes.

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