One-step microwave synthesis of palladium–carbon nanotube hybrids with improved catalytic performance

A fast and easy one-step linker-free approach for the synthesis of palladium nanoparticle/multiwall carbon nanotube (Pd-NP/MWCNT) hybrid materials is described using microwave irradiation for the effective decomposition of Pd2dba3 complex in the presence of MWCNTs. High loadings of Pd nanoparticles (up to 40 wt.%) having sizes between 3 and 5 nm are deposited on the surface of MWCNTs within a time of only 2 min. The Pd-NP/MWCNT materials serve as efficient catalysts in C–C coupling as well as in hydrogenation reactions, all characterized by high conversion rates using a small amount of catalysts, high turnover frequency values and good recyclability.

Graphical abstractA simple method for the synthesis of Pd-NP/MWNTs is reported. These materials are efficient catalysts in C–C couplings and hydrogenations and show good recyclability.Figure optionsDownload full-size imageDownload as PowerPoint slideResearch highlights► A simple method for the synthesis of Pd-NP/MWNTs is reported. ► These materials are efficient catalysts in C–C couplings and hydrogenations and show good recyclability. ► These materials contain Pd-NPs with uniform distribution and small size. ► They are obtained in very short reaction times