Promoting electrocatalytic nitrogen reduction to ammonia via Fe-boosted nitrogen activation on MnO2 surfaces

Fe-doped MnO₂ shows excellent NRR behaviour including a high faradaic efficiency of 16.8%, a high NH₃ formation rate of 39.2 μg h⁻¹ mg_cat.⁻¹ at −0.29 V vs. the reversible hydrogen electrode in 0.1 M Na₂SO₄, and good stability.