Hierarchical nanoporous Pd1Ag1 alloy enables efficient electrocatalytic nitrogen reduction under ambient conditions.

Nanoporous Pd1Ag1 nanoleaves with the merits of an appropriate atomic ratio, abundant low-coordinated surface atoms, efficient reactant accessibility and fast interfacial electron transfer kinetics exhibit superior catalytic activity towards the electrochemical nitrogen reduction reaction relative to nanoporous Pd1Ag2 and Pd3Ag1 alloys.