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Palladium supported on zinc oxide nanoparticles: Synthesis, characterization, and application as heterogeneous catalyst for Mizoroki–Heck and Sonogashira reactions under ligand-free and air atmosphere conditions

Paper ID Volume ID Publish Year Pages File Format Full-Text
39865 45837 2014 10 PDF Available
Title
Palladium supported on zinc oxide nanoparticles: Synthesis, characterization, and application as heterogeneous catalyst for Mizoroki–Heck and Sonogashira reactions under ligand-free and air atmosphere conditions
Abstract

•Palladium (Pd) supported on Zinc Oxide.•Nano crystalline Pd/ZnO as highly efficient heterogeneous catalyst.•Synthesis, characterization, and application of nano Pd/ZnO.•Ligand-free and air atmosphere conditions.

In this paper, a novel Palladium (Pd) supported on ZnO nanoparticles was readily synthesized and characterized by using X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), and BET specific surface area measurement. The total amount of palladium particles on ZnO was determined by induced coupled plasma (ICP) analysis and atomic absorption spectroscopy (AAS) which is 9.8 wt%. Percentage of accessible Pd as active catalyst is also estimated to 2.72% based on the thermogravimetric (TG) analysis. Nano Pd/ZnO was found as a new, novel, and excellent heterogeneous catalyst for ligand-free C–C bond formation through the Mizoroki–Heck and Sonogashira reactions under air atmosphere without the use of any Ar or N2 flow. The catalyst can be recovered and recycled several times without marked loss of activity.

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Keywords
Heterogeneous Catalysis; Mizoroki–Heck Reaction; nanoparticles; Pd/ZnO; Sonogashira reaction
First Page Preview
Palladium supported on zinc oxide nanoparticles: Synthesis, characterization, and application as heterogeneous catalyst for Mizoroki–Heck and Sonogashira reactions under ligand-free and air atmosphere conditions
Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 475, 5 April 2014, Pages 477–486
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis