A {Co9}-Added Polyoxometalate for Efficient Visible-Light-Driven Hydrogen Evolution

Zhen Wen Wang; Guo Yu Yang

doi:10.3390/molecules28020664

A {Co₉}-Added Polyoxometalate for Efficient Visible-Light-Driven Hydrogen Evolution

Zhen Wen Wang, Guo Yu Yang^*

^*Corresponding author for this work

School of Chemistry and Chemical Engineering

Beijing Institute of Technology

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

A polyanion cluster H₆Na₈Cs₃[Co₉(μ₃-OH)₃(H₂O)₆(HPO₄)₂(B-α-PW₉O₃₄)₃]Cl·40H₂O (1) was made with the guidance of the lacunary directing strategy under hydrothermal conditions. Compound 1 was characterized by single-crystal X-ray diffraction, powder X-ray diffraction, and thermogravimetric analysis, respectively. Single-crystal X-ray diffraction analyses showed that 1 consists of three anions [B-α-PW₉O₃₄]⁹⁻ and a cyclic cationic [Co₉(μ₃-OH)₃(H₂O)₆]¹⁵⁺ and two anions HPO₄²⁻. Variable-magnetic properties indicate antiferromagnetic interactions in 1. Visible-light-driven hydrogen evolution tests demonstrated that 1 was an efficient water reduction catalyst with an H₂ evolution rate of 1217.6 μmol h⁻¹ g⁻¹.

Original language	English
Article number	664
Journal	Molecules
Volume	28
Issue number	2
DOIs	https://doi.org/10.3390/molecules28020664
Publication status	Published - Jan 2023

Keywords

hydrothermal syntheses
lacunary directing strategy
polyoxometalates
visible-light-driven hydrogen evolution

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@article{0021d3243b404852a51532618ab198c8,

title = "A {Co9}-Added Polyoxometalate for Efficient Visible-Light-Driven Hydrogen Evolution",

abstract = "A polyanion cluster H6Na8Cs3[Co9(μ3-OH)3(H2O)6(HPO4)2(B-α-PW9O34)3]Cl·40H2O (1) was made with the guidance of the lacunary directing strategy under hydrothermal conditions. Compound 1 was characterized by single-crystal X-ray diffraction, powder X-ray diffraction, and thermogravimetric analysis, respectively. Single-crystal X-ray diffraction analyses showed that 1 consists of three anions [B-α-PW9O34]9− and a cyclic cationic [Co9(μ3-OH)3(H2O)6]15+ and two anions HPO42−. Variable-magnetic properties indicate antiferromagnetic interactions in 1. Visible-light-driven hydrogen evolution tests demonstrated that 1 was an efficient water reduction catalyst with an H2 evolution rate of 1217.6 μmol h−1 g−1.",

keywords = "hydrothermal syntheses, lacunary directing strategy, polyoxometalates, visible-light-driven hydrogen evolution",

author = "Wang, {Zhen Wen} and Yang, {Guo Yu}",

note = "Publisher Copyright: {\textcopyright} 2023 by the authors.",

year = "2023",

month = jan,

doi = "10.3390/molecules28020664",

language = "English",

volume = "28",

journal = "Molecules",

issn = "1420-3049",

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T1 - A {Co9}-Added Polyoxometalate for Efficient Visible-Light-Driven Hydrogen Evolution

AU - Wang, Zhen Wen

AU - Yang, Guo Yu

PY - 2023/1

Y1 - 2023/1

N2 - A polyanion cluster H6Na8Cs3[Co9(μ3-OH)3(H2O)6(HPO4)2(B-α-PW9O34)3]Cl·40H2O (1) was made with the guidance of the lacunary directing strategy under hydrothermal conditions. Compound 1 was characterized by single-crystal X-ray diffraction, powder X-ray diffraction, and thermogravimetric analysis, respectively. Single-crystal X-ray diffraction analyses showed that 1 consists of three anions [B-α-PW9O34]9− and a cyclic cationic [Co9(μ3-OH)3(H2O)6]15+ and two anions HPO42−. Variable-magnetic properties indicate antiferromagnetic interactions in 1. Visible-light-driven hydrogen evolution tests demonstrated that 1 was an efficient water reduction catalyst with an H2 evolution rate of 1217.6 μmol h−1 g−1.

AB - A polyanion cluster H6Na8Cs3[Co9(μ3-OH)3(H2O)6(HPO4)2(B-α-PW9O34)3]Cl·40H2O (1) was made with the guidance of the lacunary directing strategy under hydrothermal conditions. Compound 1 was characterized by single-crystal X-ray diffraction, powder X-ray diffraction, and thermogravimetric analysis, respectively. Single-crystal X-ray diffraction analyses showed that 1 consists of three anions [B-α-PW9O34]9− and a cyclic cationic [Co9(μ3-OH)3(H2O)6]15+ and two anions HPO42−. Variable-magnetic properties indicate antiferromagnetic interactions in 1. Visible-light-driven hydrogen evolution tests demonstrated that 1 was an efficient water reduction catalyst with an H2 evolution rate of 1217.6 μmol h−1 g−1.

KW - hydrothermal syntheses

KW - lacunary directing strategy

KW - polyoxometalates

KW - visible-light-driven hydrogen evolution

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U2 - 10.3390/molecules28020664

DO - 10.3390/molecules28020664

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SN - 1420-3049

VL - 28

JO - Molecules

JF - Molecules

IS - 2

M1 - 664

ER -

A {Co₉}-Added Polyoxometalate for Efficient Visible-Light-Driven Hydrogen Evolution

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Keywords

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