Electric Double Layer Effects in Electrocatalysis: Insights from Ab Initio Simulation and Hierarchical Continuum...

Area of Science:

• Surface Science
• Electrocatalysis
• Physical Chemistry

Background:

• The electric double layer (EDL) at electrocatalytic interfaces significantly influences reaction kinetics.
• EDL structure is determined by material properties, electrolyte characteristics (pH, ions), and electrode potential.
• A deeper understanding of the atomic-scale relationship between EDL structure and electrocatalytic kinetics is needed.

Purpose of the Study:

• To review recent advances in understanding EDL effects in electrocatalysis.
• To highlight the importance of multiscale approaches for deciphering EDL-electrocatalysis relationships.
• To emphasize the role of the local reaction environment, including hydrogen bonding, in EDL effects.

Main Methods:

• Review of multiscale approaches, from atomistic simulations (ab initio methods) to hierarchical macroscale analyses.
• Focus on understanding the local reaction environment at the electrocatalytic interface.

Main Results:

• EDL structures critically modulate electrocatalytic reaction kinetics.
• Multiscale approaches provide insights into the complex interplay between EDL and catalysis.
• The local hydrogen bond network is a crucial factor in understanding EDL effects.

Conclusions:

• Resolving local reaction environments, particularly hydrogen bonding, is essential for understanding EDL effects in electrocatalysis.
• Further research is needed to fully elucidate the atomic-scale relationships between EDL structure and catalytic performance.
• Future work should focus on integrating atomistic and macroscale insights for advanced electrocatalyst design.