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Palladium(0) nanoparticles formed in situ in the Suzuki–Miyaura reaction: The effect of a palladium(II) precursor

Paper ID Volume ID Publish Year Pages File Format Full-Text
42214 45915 2010 7 PDF Available
Title
Palladium(0) nanoparticles formed in situ in the Suzuki–Miyaura reaction: The effect of a palladium(II) precursor
Abstract

Two palladium catalyst precursors were prepared by immobilizing PdCl2 and Pd(OAc)2 on cyclohexyldiamine-modified glycidyl methacrylate polymer (GMA-CHDA) and used in the Suzuki–Miyaura reaction (80 °C, 2 h) without any pre-treatment. Using the TEM, SEM, EDS, and XPS methods, we were able to characterize the Pd(0) nanoparticles formed in situ during the catalytic process. The catalyst obtained from Pd(OAc)2 (P2) contained Pd(0) nanoparticles with a diameter of 3–5 nm, whereas much bigger agglomerates were found for P1, which had been obtained from PdCl2. The P2 catalyst exhibited much better catalytic performance than P1, pointing to an important role of the palladium precursor in the preparation of the catalyst.

Graphical abstractTwo palladium catalyst precursors were prepared by immobilizing PdCl2 and Pd(OAc)2 on cyclohexyldiamine-modified glycidyl methacrylate polymer (GMA-CHDA) and used in the Suzuki–Miyaura reaction. The important influence of the palladium precursor on the structure and catalytic activity of Pd(0) nanoparticles formed in situ was demonstrated.Figure optionsDownload full-size imageDownload high-quality image (47 K)Download as PowerPoint slide

Keywords
Palladium; Nanoparticles; Suzuki–Miyaura; Immobilized catalyst; XPS
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Palladium(0) nanoparticles formed in situ in the Suzuki–Miyaura reaction: The effect of a palladium(II) precursor
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 378, Issue 1, 15 April 2010, Pages 83–89
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Price was $35.95
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