Photoinduced Translocation-Transformation Strategy for Vacancy Re-Exposure and Synthesis of Stable Single Atoms.

Single-atom catalysts have attracted considerable attention owing to their unparalleled atomic-level efficiencies and distinctive structural properties. However, traditional synthesis methods often lead to less-than-optimal catalytic performance, as single atoms may occupy and block surface vacancies beneficial for catalytic activity. Achieving single-atom dispersion while retaining or reactivating vacancies remains challenging.