Paving an interfacial hydrogen superhighway via N-bridged Ru nanoparticles with Cu single atoms for efficient nitrate electroreduction to ammonia.
Electrocatalytic nitrate reduction to ammonia is strongly dependent on the availability of active hydrogen (*H). Either insufficient *H supply or excessive *H accumulation at the catalyst surface can compromise ammonia production and Faradaic efficiency. To address this challenge, a RuNP/Cu NC catalyst was developed by...