Pyridinethiolate-Capped CdSe Quantum Dots for Red-Light-Driven H 2 Production in Water.

Autor: Wei Z; MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, 510275, Guangzhou, China., Yang S; MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, 510275, Guangzhou, China., Lei J; MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, 510275, Guangzhou, China., Guo K; MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, 510275, Guangzhou, China., Yuan H; MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, 510275, Guangzhou, China., Ming M; MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, 510275, Guangzhou, China., Du J; MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, 510275, Guangzhou, China., Han Z; MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, 510275, Guangzhou, China.
Jazyk: angličtina
Zdroj: Chemistry (Weinheim an der Bergstrasse, Germany) [Chemistry] 2024 Aug 22; Vol. 30 (47), pp. e202401475. Date of Electronic Publication: 2024 Jul 31.
DOI: 10.1002/chem.202401475
Abstrakt: The utilization of low-energy sunlight to produce renewable fuels is a subject of great interest. Here we report the first example of metal chalcogenide quantum dots (QDs) capped with a pyridinethiolate carboxylic acid (pyS-COOH) for red-light-driven H 2 production in water. The precious-metal-free system is robust over 240 h, and achieves a turnover number (TON) of 43910±305 (vs Ni) with a rate of 31570±1690 μmol g -1  h -1 for hydrogen production. In contrast to the inactive QDs capped with other thiolate ligands, the CdSe-pyS-COOH QDs give a significantly higher singlet oxygen quantum yield [Φ Δ ( 1 O 2 )] in solution.
(© 2024 Wiley-VCH GmbH.)
Databáze: MEDLINE
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