Polyoxometalate-organic cage with {Ni4SiW9} node for photocatalytic hydrogen evolution

Jing Li; Yeqin Feng; Fangyu Fu; Xing Xin; Guoyu Yang; Hongjin Lv

doi:10.1016/j.cclet.2023.108736

Polyoxometalate-organic cage with {Ni₄SiW₉} node for photocatalytic hydrogen evolution

Jing Li, Yeqin Feng, Fangyu Fu, Xing Xin, Guoyu Yang^*, Hongjin Lv

^*Corresponding author for this work

School of Chemistry and Chemical Engineering

Beijing Institute of Technology

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

14 Citations (Scopus)

Abstract

The design and syntheses of metal-organic cages (MOCs) based on polyoxometalates (POMs) building blocks have attracted increasing attention due to their intriguing molecular architectures and physicochemical properties. In this work, we have successfully synthesized and systematically characterized a tetrahedral polyoxometalate-based organic cage (POC), K₃Na₁₇H₁₂[(C₄H₆O₆)₆[Ni₄(OH)₃(A-α-SiW₉O₃₄)]₄]·96H₂O (Ni₁₆L₆(SiW₉)₄), using tritopic Ni₄-substituted Keggin cluster (Ni₄SiW₉) as nodes and flexible L-(+)-tartaric acid ligands as linkers. The resulting POC tetrahedron has been firstly investigated as efficient catalyst for visible-light-driven hydrogen production, achieving a turnover number of 15,500 after 96-h photocatalysis. Such high catalytic performance of Ni₁₆L₆(SiW₉)₄ POC catalyst could be attributed to its unique cage structure, thereby offering more efficient catalytic component accessibility. In addition, spectroscopic analyses illustrated the photocatalytic mechanism and the structural stability of the TBA-Ni₁₆L₆(SiW₉)₄ catalyst during the photocatalytic process.

Original language	English
Article number	108736
Journal	Chinese Chemical Letters
Volume	35
Issue number	3
DOIs	https://doi.org/10.1016/j.cclet.2023.108736
Publication status	Published - Mar 2024

Keywords

Photocatalytic hydrogen production
Polyoxometalate
Polyoxometalate-organic cages
Visible light illumination

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.cclet.2023.108736

Cite this

@article{fb1e7347952d48cfa0ebb4e2ecc8e6b6,

title = "Polyoxometalate-organic cage with {Ni4SiW9} node for photocatalytic hydrogen evolution",

abstract = "The design and syntheses of metal-organic cages (MOCs) based on polyoxometalates (POMs) building blocks have attracted increasing attention due to their intriguing molecular architectures and physicochemical properties. In this work, we have successfully synthesized and systematically characterized a tetrahedral polyoxometalate-based organic cage (POC), K3Na17H12[(C4H6O6)6[Ni4(OH)3(A-α-SiW9O34)]4]·96H2O (Ni16L6(SiW9)4), using tritopic Ni4-substituted Keggin cluster (Ni4SiW9) as nodes and flexible L-(+)-tartaric acid ligands as linkers. The resulting POC tetrahedron has been firstly investigated as efficient catalyst for visible-light-driven hydrogen production, achieving a turnover number of 15,500 after 96-h photocatalysis. Such high catalytic performance of Ni16L6(SiW9)4 POC catalyst could be attributed to its unique cage structure, thereby offering more efficient catalytic component accessibility. In addition, spectroscopic analyses illustrated the photocatalytic mechanism and the structural stability of the TBA-Ni16L6(SiW9)4 catalyst during the photocatalytic process.",

keywords = "Photocatalytic hydrogen production, Polyoxometalate, Polyoxometalate-organic cages, Visible light illumination",

author = "Jing Li and Yeqin Feng and Fangyu Fu and Xing Xin and Guoyu Yang and Hongjin Lv",

note = "Publisher Copyright: {\textcopyright} 2023",

year = "2024",

month = mar,

doi = "10.1016/j.cclet.2023.108736",

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volume = "35",

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T1 - Polyoxometalate-organic cage with {Ni4SiW9} node for photocatalytic hydrogen evolution

AU - Li, Jing

AU - Feng, Yeqin

AU - Fu, Fangyu

AU - Xin, Xing

AU - Yang, Guoyu

AU - Lv, Hongjin

PY - 2024/3

Y1 - 2024/3

N2 - The design and syntheses of metal-organic cages (MOCs) based on polyoxometalates (POMs) building blocks have attracted increasing attention due to their intriguing molecular architectures and physicochemical properties. In this work, we have successfully synthesized and systematically characterized a tetrahedral polyoxometalate-based organic cage (POC), K3Na17H12[(C4H6O6)6[Ni4(OH)3(A-α-SiW9O34)]4]·96H2O (Ni16L6(SiW9)4), using tritopic Ni4-substituted Keggin cluster (Ni4SiW9) as nodes and flexible L-(+)-tartaric acid ligands as linkers. The resulting POC tetrahedron has been firstly investigated as efficient catalyst for visible-light-driven hydrogen production, achieving a turnover number of 15,500 after 96-h photocatalysis. Such high catalytic performance of Ni16L6(SiW9)4 POC catalyst could be attributed to its unique cage structure, thereby offering more efficient catalytic component accessibility. In addition, spectroscopic analyses illustrated the photocatalytic mechanism and the structural stability of the TBA-Ni16L6(SiW9)4 catalyst during the photocatalytic process.

AB - The design and syntheses of metal-organic cages (MOCs) based on polyoxometalates (POMs) building blocks have attracted increasing attention due to their intriguing molecular architectures and physicochemical properties. In this work, we have successfully synthesized and systematically characterized a tetrahedral polyoxometalate-based organic cage (POC), K3Na17H12[(C4H6O6)6[Ni4(OH)3(A-α-SiW9O34)]4]·96H2O (Ni16L6(SiW9)4), using tritopic Ni4-substituted Keggin cluster (Ni4SiW9) as nodes and flexible L-(+)-tartaric acid ligands as linkers. The resulting POC tetrahedron has been firstly investigated as efficient catalyst for visible-light-driven hydrogen production, achieving a turnover number of 15,500 after 96-h photocatalysis. Such high catalytic performance of Ni16L6(SiW9)4 POC catalyst could be attributed to its unique cage structure, thereby offering more efficient catalytic component accessibility. In addition, spectroscopic analyses illustrated the photocatalytic mechanism and the structural stability of the TBA-Ni16L6(SiW9)4 catalyst during the photocatalytic process.

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KW - Polyoxometalate

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KW - Visible light illumination

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