Driving Force of the Initial Step in Electrochemical Pt(111) Oxidation

Fuchs T, Briega-Martos V, Fehrs JO, Qiu C, Mirolo M, Yuan C, Cherevko S, Drnec J, Magnussen OM, Harrington DA (2023)

Publication Type: Journal article

Publication year: 2023

Journal

Journal of Physical Chemistry Letters American Chemical Society

Pages Range: 3589-3593

DOI: 10.1021/acs.jpclett.3c00520

Abstract

The first step of electrochemical surface oxidation is extraction of a metal atom from its lattice site to a location in a growing oxide. Here we show by fast simultaneous electrochemical and in situ high-energy surface X-ray diffraction measurements that the initial extraction of Pt atoms from Pt(111) is a fast, potential-driven process, whereas charge transfer for the related formation of adsorbed oxygen-containing species occurs on a much slower time scale and is evidently uncoupled from the extraction process. It is concluded that potential plays a key independent role in electrochemical surface oxidation.

Involved external institutions

Christian-Albrechts-Universität zu Kiel DE Germany (DE) Forschungszentrum Jülich / Research Centre Jülich (FZJ) DE Germany (DE) European Synchrotron Radiation Facility (ESRF) FR France (FR) University of Victoria (UVic) CA Canada (CA)

How to cite

APA:

Fuchs, T., Briega-Martos, V., Fehrs, J.O., Qiu, C., Mirolo, M., Yuan, C.,... Harrington, D.A. (2023). Driving Force of the Initial Step in Electrochemical Pt(111) Oxidation. Journal of Physical Chemistry Letters, 3589-3593. https://doi.org/10.1021/acs.jpclett.3c00520

MLA:

Fuchs, Timo, et al. "Driving Force of the Initial Step in Electrochemical Pt(111) Oxidation." Journal of Physical Chemistry Letters (2023): 3589-3593.

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