Microstructure and electrochemical hydrogen evolution reaction performance of Nb–Ti–Fe–Cu quaternary alloys

Key Points

• Electrochemical performance of Nb–Ti–Fe–Cu quaternary alloys shows significant improvements in hydrogen evolution reaction efficiency.
• The catalytic activity, measured by overpotential, demonstrates a notable enhancement when compared to traditional materials.
• Analysis of microstructure reveals unique grain boundaries and phases contributing to improved overall performance.
• These findings may enable the development of more effective catalysts for sustainable hydrogen production.