刘文刚

硕士生导师

入职时间:2018-09-03

所在单位:材料科学与工程学院

学历:博士研究生

办公地点:山东省青岛市郑州路53号青岛科技大学CCE大楼1416

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Single cobalt atom anchored on carbon nitride with well-defined active sites for photo-enzyme catalysis

发布时间:2023-10-19 点击次数:

关键字:Catalyst activity;Atomic spectroscopy - Atoms - Carbon nitride - Catalysis - Enzymes
摘要:By analogy to mono-nuclear metalloenzymes, single-atom dispersed catalysts (SACs) demonstrate very promising performance for many conventional heterogeneous and homogeneous reactions. However, the prospect of integrating SACs with enzymatic catalysis is still unexplored. Herein, atomically dispersed Co sites on ultrathin two-dimensional (2D) carbon nitride nanosheets (Co<inf>1</inf>/C<inf>3</inf>N<inf>4</inf>) were constructed and applied for efficiently photochemical cofactor (NADH) regeneration. The NADH regeneration yield reached as high as 99%. Subsequently, the in-situ regenerated-NADH triggered alcohol dehydrogenase for enzymatic reduction of aldehyde where 100% alcohol yield was achieved. Using atomic spectroscopy characterization and theoretical calculation, the genuine active sites of Co<inf>1</inf>/C<inf>3</inf>N<inf>4</inf> catalyst in reaction system were revealed in the form of CoN<inf>3</inf>-Cp* moieties (Cp*, 1,2,3,4,5-pentamethylcyclopentadiene). Such a well-defined atomic catalyst opens a new avenue for the organic transformation application of single-atom catalysts in enzyme catalysis.<br/> © 2020 Elsevier Ltd
卷号:73
期号:wu
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