Hydrogen Adsorption on Activated Platinum Electrodes - An Electrochemical Impedance Spectroscopy Study

摘要

On the way to prepare stable platinum electrodes for the characterization of the H_(upd) reaction by electrochemical impedance measurements, a novel, feather-like platinum surface modification was found and characterized. In addition, a precursor morphology was identified. Electrochemical impedance measurements at selected potentials in the H_(upd) potential region yield information on double layer capacity, adsorption capacity, and adsorption resistance of the H_(upd) reaction for these two electrode morphologies.