Atomically dispersed Ni in cadmium-zinc sulfide quantum dots for high-performance visible-light photocatalytic hydrogen production.

ABSTRACT: Catalysts with a single atom site allow highly tuning of the activity, stability, and reactivity of heterogeneous catalysts. Therefore, atomistic understanding of the pertinent mechanism is essential to simultaneously boost the intrinsic activity, site density, electron transport, and stability. Here, we report that atomically dispersed nickel (Ni) in zincblende cadmium-zinc sulfide quantum dots (ZCS QDs) delivers an efficient and durable photocatalytic performance for water splitting under sunlight. The finely tuned Ni atoms dispersed in ZCS QDs exhibit an ultrahigh photocatalytic H₂ production activity of 18.87 mmol hour^-1 g^-1. It could be ascribed to the favorable surface engineering to achieve highly active sites of monovalent Ni(I) and the surface hete

SUBMITTER: Su DW 

PROVIDER: S-EPMC7428344 | biostudies-literature | 2020 Aug

REPOSITORIES: biostudies-literature