Facile preparation of single-atom Ru catalysts via a two-dimensional interface directed synthesis technique for the NRR

Through the catalysis system design of in situ Ru SACs (single atoms) anchored on a rGO/NC two-dimensional interface, we successfully realized the SA-Ru@rGO/NC electrocatalyst with high metal loading density at a relatively low temperature. The largest NH3 yield of 110.1 mu g h(-1) mg(cat)(-1) and FE of 17.9% were achieved at -0.3 V under ambient conditions. The electronic environment of the catalyst was regulated by the electronic metal-support interaction, and the use of SACs had the advantages of inhibiting the hydrogen evolution reaction (HER) and enhancing N-2 adsorption, which effectively improved the performance of electrocatalytic nitrogen fixation.

Automated summary

By designing a catalysis system with in situ Ru SACs anchored on a rGO/NC two-dimensional interface, we have successfully achieved the SA-Ru@rGO/NC electrocatalyst with high metal loading density at a relatively low temperature. The largest NH3 yield of 110.1 μg h(-1) mg(cat)(-1) and FE of 17.9% were obtained at -0.3 V under ambient conditions. The electronic metal-support interaction regulated the electronic environment of the catalyst, and the use of SACs inhibited the hydrogen evolution reaction (HER) and enhanced N-2 adsorption, leading to an improved performance in electrocatalytic nitrogen fixation.