Eletrical double layer (EDL) is ubiquitous in electrochemistry and is fundamentally important for the electrode/electrolyte interface. We are developing nanoscale techniques to probe the EDL strucutre and its depdence on the electrode strucutre. We have shown the measurement of local potential of zero charge (PZC) at Pt and Au electrode, and found the PZC value is dependent on the crystal orientation.
Wang, Y.; Gordon, E.; Ren, H.*, “Mapping the Potential of Zero Charge (PZC) and Electrocatalytic Activity of Metal-Electrolyte Interface via a Grain-by-Grain Approach”. Anal. Chem. 2020, 92 (3), 2859-2865. DOI: 10.1021/acs.analchem.9b05502