Synthesis of Palladium Chloride Impregnated on Al2O3- Pillared Clay for Reduction of Nitrobenzene

Abstract

Palladium chloride impregnated on Al2O3-pillared clay (Pd/Al-PILC) was synthesized by intercalation of aluminium (III) chloride into clay interlayers and calcined at 500°C for 1 h. Subsequently, impregnated with PdCl2 and calcination at 450°C for 4 h. The modified clay catalyst was characterized by X-ray diffraction (XRD) for investigated atomic spacing of catalysts and N2 adsorption and desorption method (BET) for investigated surface area and pore volume of catalysts. The catalytic activities of Pd/Al-PILC was utilized for the reduction of nitrobenzene for synthesis aniline. The effect of various reaction factors, such as reaction time, reaction temperature, solvent system and the amount of catalyst were studied in order to optimize the reaction conditions. Aniline was prepared conveniently and efficiently via the reduction of nitrobenzene in the presence of a catalytic amount 40%Pd/Al-PILC of substrate in reflux temperature at 70°C for 4 h under extremely mild conditions.