Journal Article

PUBDB-2024-07501

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Direct Mechanocatalysis with Pd Alloys

Pickhardt, W.Extern* ; Kraus, F. J. L. ; Wohlgemuth, M.Extern* ; Etter, M.DESY* ; Spallek, M. ; Schwensow, M. ; Genç, Z. ; Grätz, S.Extern* ; Borchardt, L. (Corresponding author)

2024
Wiley-VCH Weinheim

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Please use a persistent id in citations: doi:10.1002/cctc.202400491  doi:10.3204/PUBDB-2024-07501

Abstract: In this study, we assess the suitability of Pd alloys in direct mechanocatalytic coupling reactions. Copper (Cu) and nickel (Ni) were alloyed with palladium (Pd), alongside testing a high entropy alloy and palladium gold alloy. Compared to pure Pd balls the alloys are promising in terms of mechanical properties and costs. Combining Pd with Cu and Ni improved mechanical resilience by up to 330 % while retaining catalytic activity, for the tested Suzuki-Miyaura and Sonogashira-Hagihara couplings. Both of which led to good to excellent yields within one hour. Notably, alloys containing 20 % Pd showed increased yields of over 80 % in the Sonogashira coupling, comparable to pure Pd. XPS and in-situ PXRD analysis showcased the influence of alloyed metals on catalytic processes, emphasizing the significance of the surface composition of milling ball.

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Contributing Institute(s):

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

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. Mechanocat - Using milling balls as catalysts – Understanding the novel concept of direct mechanocatalysis (948521) (948521)

Experiment(s):

1. PETRA Beamline P02.1 (PETRA III)

Appears in the scientific report 2024

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; DEAL Wiley ; Ebsco Academic Search ; Essential Science Indicators ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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