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Palladium nanoparticles supported on Fe3O4/amino acid nanocomposite: Highly active magnetic catalyst for solvent-free aerobic oxidation of alcohols

Paper ID Volume ID Publish Year Pages File Format Full-Text
50434 46794 2014 5 PDF Available
Title
Palladium nanoparticles supported on Fe3O4/amino acid nanocomposite: Highly active magnetic catalyst for solvent-free aerobic oxidation of alcohols
Abstract

•Palladium nanoparticles exhibited a strong interaction with cysteine-coated Fe3O4 nanoparticles.•This magnetic nanocomposite catalyst could be prepared by a simple method.•Different aldehydes were synthesized in high yields and selectivity under solvent-free conditions.•The magnetic catalyst showed high level of reusability.

In this paper, Fe3O4 nanoparticles were coated by a number of amino acids, e.g. cysteine, serine, glycine and β-alanine, via a simple method. Because of the surface modification of the magnetic nanoparticles with amino acid, the obtained magnetic nanocomposite is able to trap palladium nanoparticles through a strong interaction between the metal nanoparticles and the functional groups of amino acids. Among the synthesized nanocomposites, Fe3O4/cysteine-Pd exhibited the highest catalytic performance and excellent selectivity in the solvent-free aerobic oxidation of various alcohols, along with high level of reusability.

Graphical abstractA number of Fe3O4/amino acid-Pd nanocomposites were successfully prepared by a simple method. The results showed that Fe3O4/cysteine-Pd nanocomposite has the highest catalytic activity in the solvent-free aerobic oxidation of alcohols among the other synthesized nanocomposites, which is probably due to a strong interaction between Pd nanoparticles and sulfur groups in the cysteine structure.Figure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
Heterogeneous magnetic catalyst; Palladium nanoparticle; Cysteine amino acid; Solvent-free aerobic oxidation of alcohol; High selectivity
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Palladium nanoparticles supported on Fe3O4/amino acid nanocomposite: Highly active magnetic catalyst for solvent-free aerobic oxidation of alcohols
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 43, 5 January 2014, Pages 164–168
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us