Mesoporous KIT-6 Supported Pd–M x O y (M = Ni, Co, Fe) Catalysts with Enhanced Selectivity for p-Chloronitrobenzene Hydrogenation

Abstract Bimetallic PdM (M = Ni, Co, Fe) nanoparticles were synthesized using butyllithium as a reductant, and were used to prepare Pd–M x O y /KIT-6 catalysts by appropriate oxidation and reduction treatments. These catalysts showed higher selectivity in the hydrogenation of p -chloronitrobenzene to p -chloroaniline than Pd/KIT-6. Relevant characterization was conducted using X-ray diffraction, transmission electron microscopy, N 2 adsorption–desorption, X-ray photoelectron spectroscopy, inductive coupled plasma emission spectrometer, and H 2 temperature-programmed reduction. Graphical Abstract