Defect-Tailored ZnO Nanoflowers Enable Efficient, Metal-Free Ammonia Synthesis through Coupled Piezoelectric and Photocatalytic Activation

Key Points

• To explore the use of ZnO nanoflowers for metal-free ammonia synthesis through innovative activation methods.
• Utilized ZnO nanoflowers designed for defect tailoring.
• Investigated the coupled effects of piezoelectric and photocatalytic activation.
• Assessed ammonia synthesis performance using nitrogen reduction reaction.
• Demonstrated successful ammonia synthesis without metal catalysts.
• Showed significant improvements in efficiency via coupled activation methods.