“…However, since the eNO 3 RR to NH 3 is very complex, many reaction pathways and various intermediates (NO 2 H, OH, NOH 3 , NH 3 , NO 2 – , N, NOH 2 , NO, N 2 O, etc.) are involved. − It is thus urgent to develop highly efficient and active electrocatalysts for the selective reduction of NO 3 – to NH 3 .…”