Abstract
A novel nanocatalyst, multi-wall carbon nanotube supported palladium/copper (PdCu@MWCNT) nanoparticles, was synthesized for the reduction of nitroarene compounds. Characterization of the nanocatalyst was achieved by XRD, XPS, TEM, and Raman spectroscopy analysis. In this study, the hydrogenation of nitroarenes to primary amine compounds was achieved in aqueous medium at room temperature. The aniline derivatives were synthesized with high yields at mild conditions via novel PdCu@MWCNT nanocatalyst. The conversion of nitroarenes to amine derivatives was accomplished at 99% efficiency. In addition to its high activity, the PdCu@MWCNT catalyst was determined to be stable and reusable after the 3rd consecutive use for the reaction and provided 99% conversion of various compounds in the reduction reaction.
Highlights
A novel nanocatalyst, multi-wall carbon nanotube supported palladium/copper (PdCu@MWCNT) nanoparticles, was synthesized for the reduction of nitroarene compounds
The characterization of the PdCu@MWCNT catalyst is achieved by TEM, XRD, and XPS spectroscopy techniques
The results suggest the PdCu doping onto the MWCNT structure and free electrons of metal nanoparticles caused a change in sp[2] atoms which characterized by the change in G band[48]
Summary
A novel nanocatalyst, multi-wall carbon nanotube supported palladium/copper (PdCu@MWCNT) nanoparticles, was synthesized for the reduction of nitroarene compounds. We reported a new method for the hydrogenation of various nitroarenes with the PdCu@MWCNT nanocatalyst, synthesized by our group. 2 mg of PdCu@MWCNT, 0.25 mmol nitroarene derivatives, and 1 ml of water: methanol mixture (7:3), and sodium borohydride were placed into a reaction vessel and stirred at room temperature.
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