2024
DOI: 10.1021/acs.nanolett.4c01846
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Regulating Second Coordination Shell of Ce Atom Site and Reshaping of Carrier Enable Single-Atom Nanozyme to Efficiently Express Oxidase-like Activity

Qijun Sun,
Meng Wu,
Na Niu
et al.

Abstract: Single-atom nanozymes (SANs) are considered to be ideal substitutes for natural enzymes due to their high atom utilization. This work reported a strategy to manipulate the second coordination shell of the Ce atom and reshape the carbon carrier to improve the oxidase-like activity of SANs. Internally, S atoms were symmetrically embedded into the second coordination layer to form a Ce−N 4 S 2 −C structure, which reduced the energy barrier for O 2 reduction, promoted the electron transfer from the Ce atom to O at… Show more

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