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- W4384665343 abstract "Vinylene-linked covalent organic frameworks (COFs) have attracted enormous attention for photocatalytic H2 evolution from water because of their fully conjugated structures, high chemical stabilities, and enhanced charge-carrier mobilities. In this work, two novel vinylene-linked COFs with tuned cyano contents were successfully synthesized and then employed as photocatalysts for H2 generation. Notably, the photocatalytic H2 production rate of the COF with the higher cyano content reached 73 μmol h-1 under visible light irradiation, which is 2.4 times higher than that with the lower content (30 μmol h-1 ). Both the experimental and computational results demonstrated that the rational design incorporating cyano groups into COF skeletons could precisely tune the corresponding energy levels, expand the visible-light absorption, and improve the photoinduced charge separation. This work not only provides a simple method for modulating the photocatalytic activities of COFs at the molecular level, but also affords interesting insights into the relationship between their structures and photocatalytic performance." @default.
- W4384665343 created "2023-07-20" @default.
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- W4384665343 date "2023-08-07" @default.
- W4384665343 modified "2023-10-18" @default.
- W4384665343 title "Rational Design of Vinylene‐Linked Covalent Organic Frameworks for Modulating Photocatalytic H<sub>2</sub> Evolution" @default.
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- W4384665343 doi "https://doi.org/10.1002/cssc.202300872" @default.
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- W4384665343 hasPublicationYear "2023" @default.
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