Coordination-regulated copper single-atom active sites for electrochemical reduction of nitrate to ammonia

Abstract

The electrochemical conversion of nitrate to ammonia is necessary to restore the globally perturbed nitrogen cycle. Herein, the regulated coordination of active Cu single atoms to selectively modulate the energy barriers of proton-electron transfer steps was investigated and offered valuable insights for improving the selectivity and kinetics of the NO₃⁻RR.