Epitaxially grown silicon-based single-atom catalyst for visible-light-driven syngas production.

ABSTRACT: Improving the dispersion of active sites simultaneous with the efficient harvest of photons is a key priority for photocatalysis. Crystalline silicon is abundant on Earth and has a suitable bandgap. However, silicon-based photocatalysts combined with metal elements has proved challenging due to silicon's rigid crystal structure and high formation energy. Here we report a solid-state chemistry that produces crystalline silicon with well-dispersed Co atoms. Isolated Co sites in silicon are obtained through the in-situ formation of CoSi₂ intermediate nanodomains that function as seeds, leading to the production of Co-incorporating silicon nanocrystals at the CoSi₂/Si epitaxial interface. As a result, cobalt-on-silicon single-atom catalysts achieve an external quantum eff

SUBMITTER: Chen H 

PROVIDER: S-EPMC10050177 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature