An in situ reconstructed CuO x –BTA heterointerface enables stable and selective nitrate electroreduction to ammonia

Key Points

• The research aims to explore the electrochemical reduction of nitrate to ammonia using a reconstructed CuO-BTA heterojunction.
• Developed a CuO x –BTA heterojunction through electrochemical reconstruction.
• Optimized interfacial charge transfer and hydrogen supply.
• Measured faradaic efficiency in the electrochemical process.
• Achieved a faradaic efficiency of 99.2% for nitrate to ammonia conversion.
• Demonstrated high selectivity for the reduction of nitrates.