Br-Modified Cu/Cu₂O Catalyst

Pulsed switching for 2+6 e⁻ pathway

This catalyst enables reversible self-adaptive regulation of active sites under pulsed electrolysis, matching distinct kinetic steps of the 2+6 electron pathway to facilitate both 2-electron and 6-electron reduction stages in nitrate-to-ammonia conversion.

Wang, Weikang · Zhang, Peng · Sun, Yu · Shi, Ying · Xie, Jia · Xu, Juan · Sun, Yongfu

Journal of the American Chemical Society 2026

Advantages

94% Faradaic efficiency

~700-h electrolysis with high NO₃⁻ conversion, NH₃ Faradaic efficiency, and NH₃ selectivity

efficient NH₃ recovery from real aquaculture tailwater