4.6 Article

Preparation, Characterization, and Catalytic Properties of Pd-Graphene Quantum Dot Catalysts

Journal

CATALYSTS
Volume 12, Issue 6, Pages -

Publisher

MDPI
DOI: 10.3390/catal12060619

Keywords

Pd nanoparticle; graphene quantum dot; heterogeneous organocatalysis; Heck cross-coupling reaction; decarboxylative cross-coupling reaction

Funding

  1. National Research Foundation of Korea (NRF) - Korea government (MSIT) [2021R1F1A1061918]
  2. National Research Foundation of Korea [2021R1F1A1061918] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)

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Pd-graphene quantum dot (Pd-GQD) catalysts were prepared and characterized for their properties and catalytic activity. The study found that Pd-GQD catalyst exhibited higher catalytic activity in the Heck and decarboxylative cross-coupling reactions, and GQD was an effective support material for preparing new catalysts.
In this study, Pd-graphene quantum dot (Pd-GQD) catalysts were prepared by depositing Pd nanoparticles onto functionalized GQD surfaces, and their morphology and elemental composition were characterized using transmission electron microscopy, X-ray photoelectron spectroscopy, and Raman spectroscopy. The as-prepared Pd-GQD was subsequently employed as a catalyst for the Heck and decarboxylative cross-coupling reactions and was found to exhibit higher catalytic activity than other reference systems. The expanded substrate scope of various substituted aryl iodides further proved that the GQD is an effective support for preparing new heterogeneous catalysts with improved catalytic performances.

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