Self-healing non-precious metal oxide anode in proton exchange membrane electrolysis beyond 1,000 h stability at 2 A cm−2

Key Points

• Anode stability exceeded 1,000 hours at 2 A cm−2, showing significant improvements in lifespan.
• Findings indicate that non-precious metal-based electrocatalysts can minimize material dissolution, enhancing performance.
• The approach involved long-term testing in proton exchange membrane electrolysis systems for accurate stability assessment.
• Improvement in electrocatalyst lifespan may enable scalable applications in sustainable hydrogen production.