Probing intermediate configurations of oxygen evolution catalysis across the light spectrum

Jin Suntivich, Geoffroy Hautier, Ismaila Dabo, Ethan J. Crumlin, Dhananjay Kumar and Tanja Cuk ()
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Jin Suntivich: Cornell University
Geoffroy Hautier: Dartmouth College
Ismaila Dabo: Carnegie Mellon University
Ethan J. Crumlin: Lawrence Berkeley National Laboratory
Dhananjay Kumar: North Carolina Agricultural and Technical State University
Tanja Cuk: University of Colorado Boulder

Nature Energy, 2024, vol. 9, issue 10, 1191-1198

Abstract: Abstract The oxygen evolution reaction is crucial to sustainable electro- and photo-electrochemical approaches to chemical energy production (for example, H2). Although mechanistic descriptions of the oxygen evolution reaction have been proposed, the frontier challenge is to extract the molecular details of its elementary steps. Here we discuss how advances in spectroscopy and theory are allowing for configurations of reaction intermediates to be elucidated, distinguishing between experimental approaches (static and dynamic) across a range of surface oxygen binding energies on catalysts (from ruthenium to titanium oxides). We outline how interpreting X-ray and optical spectra relies on established and newly implemented computational techniques. A key emphasis is on detecting adsorbed oxygen intermediates at the oxide/water interface by their chemical composition, electronic and vibrational levels and ion–electron kinetic pathways. Integrating the computational advances with the experimental spectra along these lines could ultimately resolve the elementary steps, elucidating how each intermediate leads to another during oxygen evolution reaction.

Date: 2024
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DOI: 10.1038/s41560-024-01583-x

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