Co nanoparticle-decorated radix cynanchi daniculati-derived carbon for efficient electrocatalytic nitrite reduction to ammonia

As an efficient catalyst for NH 3 production via NO 2 − reduction, Co nanoparticles decorated radix cynanchi paniculati-derived carbon exhibits a high faradaic efficiency of 92.77% with a NH 3 yield of 1235.62 μmol h −1 cm −2 at −0.8 V.