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- W3205045113 abstract "Nanozyme has attracted great attention due to its diverse enzymatic catalytic activities. But there are still challenges in constructing novel nanozyme with robust catalytic activity. Here, we report an atomically dispersed and fully exposed Cu3 cluster stabilized on defect-rich nanodiamond-graphene hybrid support (Cu3/[email protected]) with unique active adsorption sites, which benefit the adsorption and cleavage of O2, resulting in enhanced oxidase-like and antibacterial activity. The catalytic rate constant of Cu3/[email protected] (Kcat = 1.474 × 10−1 s−1) is higher than those of previously reported copper single atom oxidase mimics (0.5 × 10−3 s−1) and even the commercial Pt/C mimics (1.01 × 10−2 s−1). DFT calculation revealed that the atomically dispersed Cu3 cluster as active center significantly improves the oxidase-like activity, attributing to the easy dissociation of O2 into reactive oxygen species (•OH). The atomically dispersed Cu3 cluster with an antibacterial rate of 100% in the NaAc buffer presents its potential application in the field of antibacterial materials." @default.
- W3205045113 created "2021-10-25" @default.
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- W3205045113 date "2022-02-01" @default.
- W3205045113 modified "2023-10-18" @default.
- W3205045113 title "Defect-rich graphene stabilized atomically dispersed Cu3 clusters with enhanced oxidase-like activity for antibacterial applications" @default.
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- W3205045113 doi "https://doi.org/10.1016/j.apcatb.2021.120826" @default.
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