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The Role of Surface Science in Electrocatalysis
Julia Fernández-Vidal1, Marc T M Koper1
1Leiden Institute of Chemistry, Leiden University, PO Box 9502, Leiden 2300 RA, The Netherlands.
ACS Catalysis
|February 26, 2026
Summary
Surface science, using techniques like hydrogen adsorption, is crucial for understanding electrocatalysis mechanisms. Combining experimental and theoretical surface science enables rational catalyst design for improved electrochemical reactions.
Area of Science:
- Surface science
- Electrocatalysis
- Physical Chemistry
Background:
- Electrocatalysis relies on understanding surface reactions.
- Electrochemical interfaces are complex systems influenced by adsorbates and surface structure.
Purpose of the Study:
- Revisit the relevance of surface science in electrocatalysis.
- Illustrate principles using hydrogen/hydroxyl adsorption on platinum and CO electrooxidation.
- Highlight the synergy between experimental and theoretical surface science.
Main Methods:
- Utilizing surface science techniques for atomic resolution.
- Employing computational models to understand electrochemical interfaces.
- Focusing on hydrogen underpotential deposition (HUPD) on platinum.
Main Results:
- Adsorption of *H/*OH in the HUPD region of Pt is key.
- These principles extend beyond specific examples like CO electrooxidation.
- Complexity of electrochemical interfaces requires multi-faceted approaches.
Conclusions:
- Rigorous mechanistic studies are essential for rational catalyst and electrolyte design.
- Theory and experiment must act as partners for predictive power.
- Surface science remains fundamental for advancing electrocatalysis.
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