ArticleACS physical chemistry Au2026
Cation-Surface Interactions During Electrocatalytic Hydrogen Evolution Probed by Surface X‑ray Diffraction.
Article in ACS physical chemistry Au, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Cation-Induced Interphasial Viscosity Variations on Gold Electrocatalysts in Nanoconfined Aqueous Electrolytes.Journal of the American Chemical Society · 2026Article
- Disentangling the Janus-faced effects of cations in electrocatalysis.Nature communications · 2026Article
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Authors and funding
13 authors.
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Abstract
The electrocatalytic production of hydrogen is pivotal for the sustainable generation of hydrogen fuel and hydrogen as reducing agent. Metal cations in alkaline electrolytes can facilitate or significantly impede this reaction, depending on electrolyte pH, catalyst surface, cation identity, and concentration. Still, the underlying mechanisms governing these effects remain elusive, in part due to the lack of direct characterization of how cations interact with the electrocatalyst surface and interfacial water. Here, using Surface X-ray Diffraction combined with ab initio Molecular Dynamics, we elucidate the formation of a cation layer at the electrochemical interface during hydrogen evolution on a hexagonally reconstructed Au(100) model catalyst under varying pH, potential, cation concentration, and electrolyte composition. Specular Crystal Truncation Rod measurements show that as the potential becomes more negative, Cs
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