Atomically precise AuxAg25−x nanoclusters with a modulated interstitial Au–Ag microenvironment for enhanced visible-light-driven photocatalytic hydrogen evolution

Abstract

Herein, we report the study of atomically precise Au_xAg_25−x nanoclusters (NCs) toward photocatalytic hydrogen evolution. The incorporation of Au atoms into Ag₂₅ NCs not only narrowed the HOMO–LUMO gaps but also created an interstitial Au–Ag microenvironment, which promoted the photogenerated charge carrier utilization and optimized the reaction dynamics.