Superior cycling stability of Zr-Hf-Co-Fe-Ni hydrogen isotope storage alloys achieved by hydrogen binding energy modulation

Key Points

• The research aims to improve the operational application of Zr-Co alloys for tritium capture by enhancing their stability.
• Modulation of hydrogen binding energy through alloy composition adjustments.
• Evaluation of cycling stability and disproportionation resistance.
• Comparison of performance with conventional Zr-Co alloys.
• Zr-Hf-Co-Fe-Ni alloys exhibit superior cycling stability compared to traditional Zr-Co alloys.
• Enhanced hydrogen binding energy contributes to improved performance.
• Significant reduction in disproportionation events during hydrogen cycling.