Instability of PCN-224(Fe) during the Oxygen Reduction Reaction; Metal-Organic Framework Electrocatalysts may have an Achilles heel

Key Points

• This study aims to explore the stability of PCN-224(Fe) during the oxygen reduction reaction.
• Investigation of catalytic site incorporation in metal-organic frameworks
• Assessment of PCN-224(Fe) performance
• Evaluation of stability under operational conditions
• PCN-224(Fe) shows instability during the oxygen reduction reaction
• The incorporation of catalytic sites enhances performance but introduces vulnerabilities
• Potential limitations of metal-organic frameworks as electrocatalysts are highlighted