Promoting proton coupled electron transfer in redox catalysts through molecular design

Area of Science:

• Electrochemistry and Catalysis

Background:

• Redox reactions crucial for energy conversion often involve proton transfer.
• Uncontrolled proton movement creates kinetic and thermodynamic barriers, hindering reaction rates and efficiency.
• Efficient catalysis necessitates effective management of proton dynamics.

Purpose of the Study:

• To explore strategies for managing proton movement in redox reactions.
• To highlight the importance of proton management in catalysts for chemical fuel generation and utilization.
• To discuss approaches applicable to multi-electron, multi-proton transformations.

Main Methods:

• Review of molecular design strategies for proton management.
• Analysis of examples from both biological and synthetic catalytic systems.
• Focus on catalysts facilitating H-H and O-O bond formation and cleavage.

Main Results:

• Molecular design can effectively circumvent proton transfer barriers.
• Specific strategies are vital for optimizing redox reaction kinetics and thermodynamics.
• Proton management is critical for efficient chemical fuel technologies.

Conclusions:

• Tailored molecular design is essential for overcoming proton transfer limitations in redox catalysis.
• The discussed proton management approaches offer broad applicability to complex chemical transformations.
• Advancements in proton management will drive progress in sustainable energy solutions.