Highly Dispersed Pd@ZIF‐8for Photo‐Assisted Cross‐Couplings and CO2 to Methanol: Activity and Selectivity Insights

Our study unveils a pioneering methodology that effectively distributes Pd species within a zeolitic imidazolate framework‐8 (ZIF‐8). We demonstrate that Pd can be encapsulated within ZIF‐8 as atomically dispersed Pd species that function as an excited‐state transition metal catalyst for promoting c...

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Veröffentlicht in:Angewandte Chemie International Edition 2024-11, Vol.63 (48)
Hauptverfasser: Velisoju, Vijay K, Enrique V Ramos‐Fernández, Kancherla, Rajesh, Ahmad, Rafia, Pal, Kuntal, Mohamed, Hend, Cerrillo, Jose L, Meijerink, Mark J, Cavallo, Luigi, Rueping, Magnus, Castaño, Pedro
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Sprache:eng
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Zusammenfassung:Our study unveils a pioneering methodology that effectively distributes Pd species within a zeolitic imidazolate framework‐8 (ZIF‐8). We demonstrate that Pd can be encapsulated within ZIF‐8 as atomically dispersed Pd species that function as an excited‐state transition metal catalyst for promoting carbon–carbon (C−C) cross‐couplings at room temperature using visible light as the driving force. Furthermore, the same material can be reduced at 250 °C, forming Pd metal nanoparticles encapsulated in ZIF‐8. This catalyst shows high rates and selectivity for carbon dioxide hydrogenation to methanol under industrially relevant conditions (250 °C, 50 bar): 7.46 molmethanol molmetal−1 h−1 and >99 %. Our results demonstrate the correlations of the catalyst structure with the performances at experimental and theoretical levels.
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.202409490