An advanced electrocatalyst for efficient synthesis of ammonia based on chemically coupled NiS@MoS2 heterostructured nanospheres

Here, uniform NiS@MoS₂ core–shell microspheres were controllably prepared by the in situ growth of MoS₂ nanosheets on the nanoplates of NiS₂–NiS hierarchical microspheres, and they exhibited efficient catalytic activity for ambient NRR reaction.