Grain boundary phase control via synergistic Sb doping and In regulation for enhanced hydrogen production in aluminum alloys

Key Points

• The aim is to enhance hydrogen production performance by optimizing aluminum alloys through phase control methods.
• Utilized Sb doping and In regulation techniques to modify aluminum alloys.
• Analyzed the resulting quaternary alloy compositions for their impact on hydrogen production efficiency.
• Conducted hydrolysis tests to evaluate hydrogen output from modified alloys.
• In Al-Ga-In-Sn alloys, significant improvement in hydrogen production observed compared to In₃Sn dominated alloys.
• Demonstrated a notable increase in hydrogen output per unit mass of alloy after phase control.
• Achieved optimized phase structures correlated with enhanced catalytic activity.