Highly selective generation of singlet oxygen from dioxygen with atomically dispersed catalysts.

ABSTRACT: Singlet oxygen (¹O₂) as an excited electronic state of O₂ plays a significant role in ubiquitous oxidative processes from enzymatic oxidative metabolism to industrial catalytic oxidation. Generally, ¹O₂ can be produced through thermal reactions or the photosensitization process; however, highly selective generation of ¹O₂ from O₂ without photosensitization has never been reported. Here, we find that single-atom catalysts (SACs) with atomically dispersed MN₄ sites on hollow N-doped carbon (M₁/HNC SACs, M = Fe, Co, Cu, Ni) can selectively activate O₂ into ¹O₂ without photosensitization, of which the Fe₁/HNC SAC shows an ultrahigh single-sit

SUBMITTER: Ma W 

PROVIDER: S-EPMC9116287 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature