Enhancing the activity of photocatalytic hydrogen evolution from CdSe quantum dots with a polyoxovanadate cluster

We report the improvement of photocatalytic proton reduction using molecular polyoxovanadate-alkoxide clusters as hole scavengers for CdSe quantum dots. The increased hydrogen production is explained by favorable charge interactions between reduced forms of the cluster and the charge on the quantum...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2020-08, Vol.56 (62), p.8762-8765
Main Authors: Edwards, Emily H, Fertig, Alex A, McClelland, Kevin P, Meidenbauer, Mahilet T, Chakraborty, Saikat, Krauss, Todd D, Bren, Kara L, Matson, Ellen M
Format: Article
Language:English
Subjects:
Absorption spectra
Clusters
Hydrogen evolution
Hydrogen production
Luminescence quenching
Photocatalysis
Quantum dots
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Summary:We report the improvement of photocatalytic proton reduction using molecular polyoxovanadate-alkoxide clusters as hole scavengers for CdSe quantum dots. The increased hydrogen production is explained by favorable charge interactions between reduced forms of the cluster and the charge on the quantum dots arising from the capping ligands. Adding metal-cluster hole scavengers enhances photocatalytic hydrogen production by quantum dots.
ISSN:1359-7345
1364-548X
1364-548X
DOI:10.1039/d0cc03163a