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Nanomaterials
Volume 12
Issue 3
10.3390/nano12030499
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Article

Tying Covalent Organic Frameworks through Alkene Metathesis and Supported Platinum as Efficient Catalysts for Hydrosilylation

by
Defa Gu
1,†,
Guangwen Li
2,†,
Yushan Liu
3 and
Yuzhou Liu
1,4,*
1
School of Chemistry, Beihang University, Bejing 100191, China
2
Research Institute of Petroleum Processing, SINOPEC, Beijing 100083, China
3
Trinity School of Durham and Chapel Hill, Durham, NC 27705, USA
4
Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing 100191, China
*
Author to whom correspondence should be addressed.
†
These authors contributed equally to this work.
Nanomaterials 2022, 12(3), 499; https://doi.org/10.3390/nano12030499
Submission received: 25 December 2021 / Revised: 28 January 2022 / Accepted: 29 January 2022 / Published: 31 January 2022
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Abstract

Recently there has been a great interest in covalent organic frameworks due to their fascinating properties. Current approaches to improve their hydrolytic stability mainly rely on the transformation of the dynamic bonds into strong and irreversible bonds, but these approaches also reduce the versatility of the frameworks. Herein, we would like to demonstrate a solution to this dilemma by forming hierarchical bonds through olefin metathesis to produce highly stable COFs. Our approach allows unprecedented opportunities for post-modification of the inner space through the dynamic imine bonds while maintaining the integrity of the framework. Specifically, we demonstrate an amorphous-to-crystalline transformation. In addition, the porosity can be enhanced by up to 70% after full removal of the amine subunits. Overall, our work provides a new direction for the generation of highly stable while still versatile COFs. Meanwhile, platinum(II) complexes can be supported on BHU-2 (Pt@BHU-2) or BHU-2-Oxidate(Pt@BHU-2-Oxidate) as efficient catalysts for hydrosilylation.
Keywords: hydrolytic stability; hierarchical bond formation; alkene metathesis; hydrosilylation hydrolytic stability; hierarchical bond formation; alkene metathesis; hydrosilylation

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MDPI and ACS Style

Gu, D.; Li, G.; Liu, Y.; Liu, Y. Tying Covalent Organic Frameworks through Alkene Metathesis and Supported Platinum as Efficient Catalysts for Hydrosilylation. Nanomaterials 2022, 12, 499. https://doi.org/10.3390/nano12030499

AMA Style

Gu D, Li G, Liu Y, Liu Y. Tying Covalent Organic Frameworks through Alkene Metathesis and Supported Platinum as Efficient Catalysts for Hydrosilylation. Nanomaterials. 2022; 12(3):499. https://doi.org/10.3390/nano12030499

Chicago/Turabian Style

Gu, Defa, Guangwen Li, Yushan Liu, and Yuzhou Liu. 2022. "Tying Covalent Organic Frameworks through Alkene Metathesis and Supported Platinum as Efficient Catalysts for Hydrosilylation" Nanomaterials 12, no. 3: 499. https://doi.org/10.3390/nano12030499

APA Style

Gu, D., Li, G., Liu, Y., & Liu, Y. (2022). Tying Covalent Organic Frameworks through Alkene Metathesis and Supported Platinum as Efficient Catalysts for Hydrosilylation. Nanomaterials, 12(3), 499. https://doi.org/10.3390/nano12030499

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