ZnO–CoS heterostructure quantum dots for enhanced electrocatalytic nitrogen reduction to ammonia

In 0.1 M Na 2 SO 4 , ZnO–CoS quantum dots attained a high NH 3 yield of 33.03 μg h −1 mg cat. −1 and a high FE of 11.7% at −0.20 V vs. a reversible hydrogen electrode, with high electrochemical and structural stability.