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

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

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The design and syntheses of metal-organic cages(MOCs)based on polyoxometalates(POMs)build-ing blocks have attracted increasing attention due to their intriguing molecular architectures and physicochemical properties.In this work,we have successfully synthesized and systematically char-acterized 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 at-tributed 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.

PolyoxometalatePolyoxometalate-organic cagesPhotocatalytic hydrogen productionVisible light illumination

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

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MOE Key Laboratory of Cluster Science,Beijing Key Laboratory of Photoelectroic/Electrophotonic Conversion Materials,School of Chemistry and Chemical Engineering,Beijing Institute of Technology,Beijing 102488,China

国家自然科学基金国家自然科学基金Recruitment Program of Global Experts(Young Talents)BIT Excellent Young Scholars Research Fund

2187102521831001

2024

10.1016/j.cclet.2023.108736

中国化学快报(英文版)
中国化学会

中国化学快报(英文版)

CSTPCD
影响因子：0.771
ISSN：1001-8417
年,卷(期)：2024.35(3)
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