High-entropy sulfide nanoflowers with multi-atomic catalytic sites for efficient nitrate-to-ammonia conversion

Abstract

and a faradaic efficiency of 93.2%. Theoretical investigations identify three enhancement mechanisms: (1) hierarchical nanoarchitecture enabling maximized active site accessibility, (2) multi-metal synergy fine-tuning charge transfer dynamics, and (3) an upshifted d-band center synergistically accelerating water dissociation and hydrogenation kinetics. This work develops a simple synthesis strategy for HEMs, offering insights into their electronic structure modulation and holding significant promise for energy applications.