Encapsulation of Au55 clusters within surface-supported metal-organic frameworks for catalytic reduction of 4-Nitrophenol

We demonstrate a facile approach to encapsulate ligand-stabilized Au55 clusters [Au55(PPh3)12Cl6] within highly oriented surface-supported metal-organic framework (SURMOF) thin films via liquid-phase epitaxy. The Au55 clusters were successfully loaded into the pores of SURMOF during their fabricatio...

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Hauptverfasser: Liu, Jinxuan (VerfasserIn) , Heidrich, Shahriar (VerfasserIn) , Liu, Jianxi (VerfasserIn) , Guo, Biao (VerfasserIn) , Zharnikov, Michael (VerfasserIn) , Simon, Ulrich (VerfasserIn) , Wenzel, Wolfgang (VerfasserIn) , Wöll, Christof (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: December 16, 2020
In: ACS applied nano materials
Year: 2020, Jahrgang: 4, Heft: 1, Pages: 522-528
ISSN:2574-0970
DOI:10.1021/acsanm.0c02842
Online-Zugang:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1021/acsanm.0c02842
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Verfasserangaben:Jinxuan Liu, Shahriar Heidrich, Jianxi Liu, Biao Guo, Michael Zharnikov, Ulrich Simon, Wolfgang Wenzel, Christof Wöll

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520 |a We demonstrate a facile approach to encapsulate ligand-stabilized Au55 clusters [Au55(PPh3)12Cl6] within highly oriented surface-supported metal-organic framework (SURMOF) thin films via liquid-phase epitaxy. The Au55 clusters were successfully loaded into the pores of SURMOF during their fabrication, which has been confirmed by X-ray diffraction, infrared spectroscopy, and ultraviolet-visible spectroscopy. Computational modeling reveals that there is a strong interaction between the Au55 core and the oligophenyl ligands of the MOF pore, leading to a removal of the PPH3 ligands. The stabilized Au55 clusters within SURMOF exhibit excellent catalytic activity for the reduction of 4-nitrophenol. 
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