Proceedings of MATSUS Fall 2023 Conference (MATSUSFall23)
DOI: https://doi.org/10.29363/nanoge.matsus.2023.231
Publication date: 18th July 2023
The electrochemical reduction of CO2 (CO2R) holds tremendous potential as a pivotal component in future energy systems reliant on renewable fuels. CO2R proceeds through a complex reaction scheme consisting of multiple proton-electron steps with numerous possible intermediates and products, out of which many have been detected only recently. An additional level of complexity arises from the surface dynamics of the Cu catalysts undergoing structural transformations under potential, with rapid changes in size, shape, and activity. By combining electrochemical measurements with high-resolution imaging, we identify and track dynamic active sites on the surface of electrodes during electrocatalysis.
In this talk, I will show you examples on the surface dynamics of Cu, Cu oxides and Cu electrodes covered by 2D materials during CO2 electroreduction. I will discuss the use of scanning probe microscopy and solid state spectroscopy to track the surface dynamics of electrocatalysts in-situ, and present a few unconventional strategies to reach significant boosts in the catalytic activity of 2D materials, using spin-selective mechanisms.
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