Single atom activated multi-stage active sites for thoroughgoing sodium utilization.

ABSTRACT: Atomically dispersed metals offer advantages in guiding sodium deposition, yet the effects of single atoms on their surrounding structures and the precise tuning of coordination-governed single-atom activity remain underexplored. Herein, carbon nanofiber films with tin single atoms anchored via a dynamic coordination mode (shifting from coordination with three nitrogen atoms and one oxygen atom to coordination with one nitrogen atom and three oxygen atoms) are developed to address these challenges. The tin atoms not only enhance the sodium-ion adsorption activity of their directly coordinated nitrogen and oxygen atoms but also activate remote carbon atoms. The activation capability is strongly dependent on coordination environment, with tin atoms coordinated to more nitrogen atoms exhibiti

SUBMITTER: Gao S 

PROVIDER: S-EPMC12537856 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature