Nanodiamond Supported Ultra-Small Palladium Nanoparticles as an Efficient Catalyst for Suzuki Cross-Coupling Reactions

Author:

Pocklanová Radka1,Warkad Indrajeet R.2,Prucek Robert1,Balzerová Anna3,Panáček Aleš1,Kadam Ravishankar G.3,Kvítek Libor1ORCID,Gawande Manoj B.23ORCID

Affiliation:

1. Department of Physical Chemistry, Faculty of Science, Palacký University Olomouc, 17. Listopadu 1192/12, 771 46 Olomouc, Czech Republic

2. Department of Industrial and Engineering Chemistry, Institute of Chemical Technology, Mumbai, Marathwada Campus, Jalna 431203, Maharashtra, India

3. Regional Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute, Palacký University Olomouc, Šlechtitelů 241/27, 779 00 Olomouc, Czech Republic

Abstract

A nanocatalyst comprising ultra-small palladium nanoparticles supported on nanodiamonds (ultra-small Pd/rNDs) was fabricated via a reduction of palladium (II) salt on oxidized nanodiamond. The prepared catalyst was characterized using XRD, XPS, ICP-MS, AAS, and TEM/HRTEM techniques, including STEM-EDS chemical mapping, which revealed that the modified material is a combination of reduced nanodiamond decorated with palladium nanoparticles. The as-prepared and well-characterized ultra-small Pd supported on rNDs displayed superb catalytic activity for Suzuki–Miyaura cross-coupling reactions at low temperature without any toxic solvents, to obtain the respective products in good-to-excellent yields (75–98%). The catalyst was easily separated from the reaction solution and was reused four times without loss of catalytic activity or chemical stability.

Funder

Palacky University Institutional

DST-SERB Core Research Grant

Publisher

MDPI AG

Subject

Physical and Theoretical Chemistry,Catalysis,General Environmental Science

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