KIT | KIT-Bibliothek | Impressum | Datenschutz

Support Engineering for the Stabilisation of Heterogeneous Pd$_{3}$P‐Based Catalysts for Heck Coupling Reactions

Neyyathala, Arjun 1; Flecken, Franziska 1; Rang, Fabian 1; Papke, Christina 1; Hanf, Schirin 1
1 Institut für Anorganische Chemie (AOC), Karlsruher Institut für Technologie (KIT)

Abstract:

Herein we report the use of a supported Pd$_3$P catalyst for Heck coupling reactions. For the stabilisation of Pd$_3$P and Pd, as reference system, the silica support material was modified via phosphorus doping (0.5 and 1 wt % P). Through this so-called support engineering approach, the catalytic activity of Pd$_3$P was clearly enhanced. Whereas an iodobenzene conversion of 79 % was witnessed for Pd$_3$P@SiO$_2$ in the coupling of styrene and iodobenzene in 1 h, 90 % conversion could be achieved using Pd$_3$P@1P-SiO$_2$. This improved catalytic activity probably stems from an electronic modulation of the support surface via the introduction of phosphorus. Simultaneously, the recyclability was boosted and the Pd$_3$P@1P-SiO$_2$ catalyst has shown to maintain its catalytic activity over several recovery tests. Hereby, metal leaching could almost be suppressed completely to 3 % by the use of a P-modified silica support.


Verlagsausgabe §
DOI: 10.5445/IR/1000164623
Veröffentlicht am 28.11.2023
Originalveröffentlichung
DOI: 10.1002/chem.202302825
Scopus
Zitationen: 1
Dimensions
Zitationen: 1
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Anorganische Chemie (AOC)
Publikationstyp Zeitschriftenaufsatz
Publikationsdatum 02.01.2024
Sprache Englisch
Identifikator ISSN: 0947-6539, 1521-3765
KITopen-ID: 1000164623
Erschienen in Chemistry – A European Journal
Verlag John Wiley and Sons
Band 30
Heft 1
Seiten Art.Nr.: e202302825
Vorab online veröffentlicht am 08.11.2023
Schlagwörter Heck coupling, heterogeneous catalysis, metal leaching, palladium phosphide, support engineering
Nachgewiesen in Dimensions
Scopus
Web of Science
KIT – Die Forschungsuniversität in der Helmholtz-Gemeinschaft
KITopen Landing Page