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Cited by 462

The DOI matches its Crossref record; 45 of the 45 references it cites were found in a registry or an index.

Polyoxometalate-Based Cobalt–Phosphate Molecular Catalysts for Visible Light-Driven Water Oxidation

Han, Xin-Bao, Zhang, Zhi-Ming, Zhang, Teng, Li, Yang-Guang, Lin, Wenbin, You, Wansheng, Su, Zhong-Min, Wang, En-Bo·2014·Journal of the American Chemical Society

Abstract

A series of all-inorganic, abundant-metal-based, high-nuclearity cobalt-phosphate (Co-Pi) molecular catalysts [{Co4(OH)3(PO4)}4(SiW9O34)4](32-) (1), [{Co4(OH)3(PO4)}4(GeW9O34)4](32-) (2), [{Co4(OH)3(PO4)}4(PW9O34)4](28-) (3), and [{Co4(OH)3(PO4)}4(AsW9O34)4](28-) (4) were synthesized and shown to be highly effective at photocatalytic water oxidation. The {Co16(PO4)4} cluster contains a Co4O4 cubane which is structurally analogous to the [Mn3CaO4] core of the oxygen-evolving complex (OEC) in photosystem II (PSII). Compounds 1-4 were shown to be the first POM-based Co-Pi-cluster molecular catalysts for visible light-driven water oxidation, thus serving as a functional model of the OEC in PSII. The systematic synthesis of four isostructural analogues allowed for investigating the influence of different heteroatoms in the POM ligands on the photocatalytic activities of these Co-Pi cluster WOCs. Further, the POM-based photocatalysts readily recrystallized from the photocatalytic reaction systems with the polyoxoanion structures unchanged, which together with the laser flash photolysis, dynamic light-scattering, (31)P NMR, UV-vis absorption, POM extraction, and ICP-MS analysis results collectively confirmed that compounds 1-4 maintain their structural integrity under the photocatalytic conditions. This study provides not only a valuable molecular model of the "Co-Pi" catalysts with a well-defined structure but also an unprecedented opportunity to fine-tune high-nuclearity POM clusters for visible light-driven water splitting.

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Metadata

Authors
Han, X.-B., Zhang, Z.-M., Zhang, T., Li, Y.-G., Lin, W., You, W., Su, Z.-M., & Wang, E.-B.
Venue
Journal of the American Chemical Society
Published
2014-03-31
Volume
136
Issue
14
Pages
5359-5366
ISSN
  • 0002-7863 (ISSN-L)
  • 1520-5126
OpenAlex
W2323963066
Cited by
462
References
45
FWCI
32.16
Type
journal article
Language
en
Open access
closed

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