Ammonia plasma-activated NiRu alloy nanoarray embedded in carbonized wood for efficiently boosting hydrogen evolution at large current density

Abstract

A nitrogen-doped NiRu nanoarray anchored on carbonized wood (N–NiRu/CW) was synthesized via ammonia plasma treatment, demonstrating exceptional hydrogen evolution reaction performance. The hierarchical porous structure, uniformly dispersed NiRu species, and N-induced electronic synergy between the heterostructure and carbon matrix synergistically enhance active site exposure and charge transfer kinetics.