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  Creation of Exclusive Artificial Cluster Defects by Selective Metal Removal in the (Zn, Zr) Mixed-metal UiO-66

Feng, X., Jena, H., Krishnaraj, C., Arenas-Esteban, D., Leus, K., Wang, G., et al. (2021). Creation of Exclusive Artificial Cluster Defects by Selective Metal Removal in the (Zn, Zr) Mixed-metal UiO-66. Journal of the American Chemical Society, 143(51), 21511-21518. doi:10.1021/jacs.1c05357.

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Item Permalink: https://hdl.handle.net/21.11116/0000-0009-75DC-C Version Permalink: https://hdl.handle.net/21.11116/0000-0009-B3E9-6
Genre: Journal Article

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 Creators:
Feng, Xiao1, 2, Author
Jena, Himanshu2, Author
Krishnaraj, Chidharth2, Author
Arenas-Esteban, Daniel3, Author
Leus, Karen3, Author
Wang, Guangbo2, 4, Author
Sun, Jiamin2, Author
Rüscher, Martina5, Author           
Timoshenko, Janis5, Author           
Roldan Cuenya, Beatriz5, Author           
Bals, Sara3, Author
Van Der Voort, Pascal2, Author
Affiliations:
1Zhang Dayu School of Chemistry, State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China, ou_persistent22              
2Center for Ordered Materials, Organometallics and Catalysis (COMOC), Department of Chemistry, Ghent University, Ghent B-9000, Belgium, ou_persistent22              
3Department of Physics, EMAT Electron Microscopy for Materials Science, University of Antwerp, Antwerp 2020, Belgium, ou_persistent22              
4College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry for Education, Shandong Normal University, Jinan 250014, P. R. China, ou_persistent22              
5Interface Science, Fritz Haber Institute, Max Planck Society, ou_2461712              

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 Abstract: The differentiation between missing linker defects and missing cluster defects in MOFs is difficult, thereby limiting the ability to correlate materials properties to a specific type of defects.
Herein, we present a novel and easy synthesis strategy for the creation of solely “missing cluster defects”by preparing mixed-metal (Zn, Zr)-UiO-66 followed by a gentle acid wash to remove the Zn nodes. The resulting material has the reo UiO-66 structure, typical for well-defined missing cluster defects. The missing clusters are
thoroughly characterized, including low-pressure Ar-sorption, iDPC-STEM at a low dose (1.5 pA), and XANES/EXAFS analysis. We show that the missing cluster UiO-66 has a negligible number of missing linkers. We show the performance of the missing cluster
UiO-66 in CO2 sorption and heterogeneous catalysis.

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Language(s): eng - English
 Dates: 2021-05-242021-11-082021-12-072021-12-29
 Publication Status: Issued
 Pages: 8
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1021/jacs.1c05357
 Degree: -

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Title: Journal of the American Chemical Society
  Other : JACS
  Abbreviation : J. Am. Chem. Soc.
Source Genre: Journal
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Publ. Info: Washington, DC : American Chemical Society
Pages: 8 Volume / Issue: 143 (51) Sequence Number: - Start / End Page: 21511 - 21518 Identifier: ISSN: 0002-7863
CoNE: https://pure.mpg.de/cone/journals/resource/954925376870