Exploration reveals insights into material selectivity for hydrogen peroxide in oxygen reduction, suggesting ΔΔG's predictive power for identifying promising candidates.
Key Points
Selectivity trends in two-electron oxygen reduction indicate not all active sites achieve high selectivity.
The selectivity descriptor ΔΔG revealed insights from a large database of binary alloys and carbon-based materials.
Assessment of diverse active sites highlights the importance of distinguishing catalytic activity from selectivity.
Findings suggest that only a small fraction of high-activity materials also exhibit high selectivity for hydrogen peroxide production.