Viewing atoms, molecules and ions at metal/water interfaces
Katharina Doblhoff-Dier a
a Leiden Institute of Chemistry, Leiden University, the Netherlands
Materials for Sustainable Development Conference (MATSUS)
Proceedings of MATSUS Fall 2024 Conference (MATSUSFall24)
#ModElOp - Modeling Electrochemistry in Operando
Lausanne, Switzerland, 2024 November 12th - 15th
Organizers: Federico Dattila and Kevin Rossi
Invited Speaker, Katharina Doblhoff-Dier, presentation 042
DOI: https://doi.org/10.29363/nanoge.matsusfall.2024.042
Publication date: 28th August 2024

Molecular dynamics can be a powerful tool to study the properties of electrochemical interfaces.

In this talk, I will take you on a walk through the atomic scale world that unfolds at the surface of metallic electrodes. We will start by visiting a forest of adsorbates, including H and OH. In this context, I will discuss why even adsorbed hydrogen on platinum surfaces, which is probably one of the most studied electrochemical interfaces, still bares its secrets. We will then go further and view the influence of adsorbed OH on the operando electrochemical interface. Here, I will ask the question why the presence of OH can (not) change everything. Finally, we will look further up from the surface and scrutinize the behavior of ions at the interface. Can molecular dynamics help us unravelling at which height the ions reside?  What happens to the solvation structure of the ions as they approach the interface? And how closely can ions pack at charged metal surfaces?

All this information can be used to better understand electrochemical processes at the interface.

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