Preparation of Nanostructured Pd-Fe2O3 Catalyst for C-C Coupling Reaction

We have synthesized palladium nanoparticles supported iron oxide catalyst by controlled deposition of palladium in presence of triethanolamine and polyvinylpyrrolidone (PVP), where triethanolamine act as mild reducing agent and PVP act as capping agent. Prepared (0.9% Pd-Fe2O3CD) catalyst showed high activity towards Heck coupling reaction, under mild reaction conditions. Different analytical techniques were systematically employed to characterize the prepared material in order to find the specific surface area, Pd loading, crystal structure, surface morphology, particle size, reducibility behavior, surface chemical state, phase purity and crystallinity, optical property and local environment of active species etc. 0.9% Pd-Fe2O3CD catalyst showed high activity toward Heck coupling with iodo-derivatives at room temperature in solvent-free reaction conditions and prevented the leaching of active species, during catalysis. The catalyst possessed strong metal-support interaction due to smaller Pd nanoparticles (2-12 nm) and maintained its heterogeneous nature during recycling experiments.