Journal Article

PUBDB-2025-04227

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Cyclopalladation of a covalent organic framework for near-infrared-light-driven photocatalytic hydrogen peroxide production

Rodríguez-Camargo, A. ; Terban, M. W.Extern* ; Paetsch, M. ; Rico, E. A. ; Graf, D. ; Hirpara, R. ; Duppel, V. ; Moudrakovski, I. ; Etter, M.DESY* ; Guijarro, N. ; Ochsenfeld, C. ; Dinnebier, R. E.Extern* ; Yao, L. (Corresponding author) ; Lotsch, B. V. (Corresponding author)

2025
Nature Publishing Group UK London

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Please use a persistent id in citations: doi:10.1038/s44160-024-00731-1  doi:10.3204/PUBDB-2025-04227

Abstract: Covalent organic frameworks (COFs) have been developed as photosensitizers for photocatalytic energy conversion over the past decade; however, COF photocatalysts have yet to demonstrate the ability to harvest near-infrared light (above 760 nm, approximately 53% of the solar spectrum) for fuel or chemical conversion. In this work we introduce a post-synthetic functionalization strategy for COFs by incorporating a palladacycle directly into the COF backbone, extending the light absorption of an azobenzene-based COF into the near-infrared region. This approach enables homogeneous, atomically distributed palladium functionalization with a high loading of 12 wt% and without noticeable formation of palladium nanoparticles. The cyclopalladated COF, TpAzo-CPd, was used as a catalyst for photocatalytic hydrogen peroxide production under 810 nm illumination. This study demonstrates the use of COFs for near-infrared photocatalysis and opens the door to palladium-single-site COF catalysts for a wide range of chemical transformations.

Note: Creative Commons Attribution 4.0 International License

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Contributing Institute(s):

1. DOOR-User (DOOR ; HAS-User)
2. PETRA-D (FS-PETRA-D)

Research Program(s):

1. 632 - Materials – Quantum, Complex and Functional Materials (POF4-632) (POF4-632)
2. 6G3 - PETRA III (DESY) (POF4-6G3) (POF4-6G3)
3. DFG project G:(GEPRIS)388390466 - TRR 247: Heterogene Oxidationskatalyse in der Flüssigphase – Materialien und Mechanismen in der thermischen, Elektro- und Photokatalyse (388390466) (388390466)
4. DFG project 506637248 - Elektrokatalyse: Teilprozesse von Nanokatalysatortransformation und Oxidationsreaktionen auflösen (A09*) (506637248) (506637248)
5. SFB 1333 A03 - Elektrokatalyse in definierten dirigierenden Geometrien: CO2-Reduktion mit COF-Katalysatoren (A03) (406656374) (406656374)
6. DFG project G:(GEPRIS)467064849 - Umgebungseffekte in der Dynamik angeregter Zustände: Quantenchemische Einblicke und Benchmarks (C05) (467064849) (467064849)
7. DFG project G:(GEPRIS)390776260 - EXC 2089: e-conversion (390776260) (390776260)

Experiment(s):

1. PETRA Beamline P02.1 (PETRA III)

Appears in the scientific report 2025

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; DEAL Nature ; Emerging Sources Citation Index ; SCOPUS ; Web of Science Core Collection

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