Recent development of electrochemical nitrate reduction to ammonia: A mini review

Nitrate (NO3-) pollution has become increasingly prominent due to industry and agriculture. Electrochemical reduction can convert NO3- into high value-added ammonia (NH3) and remove NO3- pollution. This review focuses on the latest research progress in the field of electrochemical nitrate reduction reaction (NO3-RR) to NH3. The mechanism of NO3-RR is briefly discussed. Catalysts, as well as qualitative and quantitative methods for the detection of NH3 are also summarized. Finally, the challenges and prospects in this field are discussed. We hope this mini review aids researchers in the design and development of advanced research strategies for electrochemical NO3--to-NH3 processes.