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学者姓名：刘储浩
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Abstract ：
Cocatalyst is of paramount significance to provide fruitful active sites for suppressing the spatial charge recombination toward boosted photocatalysis. Up to date, exploration of robust and stable cocatalysts is remained challenging. Inspired by the intrinsic merits of single-atom catalysts (SACs), such as distinctive electronic structure and high atomic utilization efficiency, single-atom/transition metal chalcogenides (TMCs) is utilized as a model to synthesize CdS-Pd single-atom catalyst (CdS-PdSA) heterostructures. This demonstrates the precise anchoring of isolated metal single-atom catalysts (SACs) onto TMCs through a simple yet effective wet-chemical strategy. The resulting heterostructures exhibit significantly enhanced and stable photocatalytic activity for selective anaerobic organic transformations and hydrogen production under visible light. This enhancement is primarily inferred due to the role of Pd SACs as electron pumps, which directionally trap the electrons photoexcited over CdS, accelerating the spatial charge separation and prolonging the carrier lifespan. The charge transport route and photocatalytic mechanism are elucidated. This work underscores the potential of SACs as cocatalysts in heterogeneous photocatalysis, offering valuable insights for the rational design of atomic-level cocatalysts for solar-to-chemical energy conversion and beyond. Metal single atoms act as electron pumps to expedite the unidirectional electron transfer from the TMCs matrix to the metal single atoms, contributing to the markedly augmented organic transformation and hydrogen generation activities. image
Keyword ：
charge transfer charge transfer electron pump electron pump photoreduction catalysis photoreduction catalysis single atoms single atoms TMC TMC
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| GB/T 7714 | Chen, Jia-Qi , Cai, Yu-Shan , Yan, Xian et al. Single-Atom Electron Pumps Over Transition Metal Chalcogenides Boosting Photocatalysis [J]. | SMALL , 2024 , 20 (51) . |
| MLA | Chen, Jia-Qi et al. "Single-Atom Electron Pumps Over Transition Metal Chalcogenides Boosting Photocatalysis" . | SMALL 20 . 51 (2024) . |
| APA | Chen, Jia-Qi , Cai, Yu-Shan , Yan, Xian , Mo, Qiao-Ling , Yuan, Jiao-Nan , Liu, Chu-Hao et al. Single-Atom Electron Pumps Over Transition Metal Chalcogenides Boosting Photocatalysis . | SMALL , 2024 , 20 (51) . |
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