Regulating the electronic structure through charge redistribution in dense single-atom catalysts for enhanced alkene epoxidation.

ABSTRACT: Inter-site interaction in densely populated single-atom catalysts has been demonstrated to have a crucial role in regulating the electronic structure of metal atoms, and consequently their catalytic performances. We herein report a general and facile strategy for the synthesis of several densely populated single-atom catalysts. Taking cobalt as an example, we further produce a series of Co single-atom catalysts with varying loadings to investigate the influence of density on regulating the electronic structure and catalytic performance in alkene epoxidation with O₂. Interestingly, the turnover frequency and mass-specific activity are significantly enhanced by 10 times and 30 times with increasing Co loading from 5.4 wt% to 21.2 wt% in trans-stilbene epoxidation, respectively. Fu

SUBMITTER: Jin H 

PROVIDER: S-EPMC10148878 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature