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A. Reiner, H. Kuhn, A. Wokaun, G.G. Scherer

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

Keywords: Platinum Electrodes, activation, morphology, Hupd, impedance spectroscopy

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.

Zeitschrift für Physikalische Chemie, Oldenbourg Wissenschaftsverlag

Print ISSN: 0942-9352
Volume: 221, 09/2007
Pages: 1319 - 1341

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