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  Metal-free activation of molecular oxygen by covalent triazine frameworks for selective aerobic oxidation

Abednatanzi, S., Gohari Derakhshandeh, P., Leus, K., Vrielinck, H., Callens, F., Schmidt, J., et al. (2020). Metal-free activation of molecular oxygen by covalent triazine frameworks for selective aerobic oxidation. Science Advances, 6(14): eaaz2310. doi:10.1126/sciadv.aaz2310.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0006-3E79-E Version Permalink: http://hdl.handle.net/21.11116/0000-0006-3E7A-D
Genre: Journal Article

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 Creators:
Abednatanzi, Sara, Author
Gohari Derakhshandeh, Parviz, Author
Leus, Karen, Author
Vrielinck, Henk, Author
Callens, Freddy, Author
Schmidt, Johannes, Author
Savateev, Aleksandr1, Author              
Van Der Voort, Pascal, Author
Affiliations:
1Aleksandr Savateev, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_2421702              

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 Abstract: Oxygen activation is a critical step in ubiquitous heterogeneous oxidative processes, most prominently in catalysis, electrolysis, and pharmaceutical applications. We present here our findings on metal-free O2 activation on covalent triazine frameworks (CTFs) as an important class of N-rich materials. The O2 activation process was studied for the formation of aldehydes, ketones and imines. A detailed mechanistic study of O2 activation and the role of nitrogen heteroatoms were comprehensively investigated. The electron paramagnetic resonance (EPR) and control experiments provide strong evidence for the reaction mechanism proving the applicability of the CTFs to activate oxygen into superoxide species. This report highlights the importance of a self-templating procedure to introduce N functionalities for the development of metal-free catalytic materials. The presented findings reveal an important step toward the use of CTFs as inexpensive and high-performance alternatives to metal-based materials not only for catalysis but also for biorelated applications dealing with O2 activation.

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Language(s): eng - English
 Dates: 2020-04-032020
 Publication Status: Published in print
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 Identifiers: DOI: 10.1126/sciadv.aaz2310
BibTex Citekey: Abednatanzieaaz2310
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Title: Science Advances
  Other : Sci. Adv.
Source Genre: Journal
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Publ. Info: Washington : AAAS
Pages: - Volume / Issue: 6 (14) Sequence Number: eaaz2310 Start / End Page: - Identifier: ISSN: 2375-2548