Highly active hydrogenation of 4-methoxyacetophenone by the novel carbon-supported ternary nanocatalyst palladium-vanadium-cobalt

Abstract

Multimetallic nanocatalysts have remarkably revealed activities in various catalytic applications. Herein, the ternary nanocatalysts based on palladium-vanadium-cobalt were successfully synthesized through the reduction of their salts with sodium borohydride including impregnating of activated carbon (AC) substrate with colloid solution of metallic nanoparticles (PdVCo/C). The immobile of trimetallic PdVCo on AC was evidenced by XRD, scanning electron microscopy (SEM), transmission electron microscopy (TEM) and UV-VIS spectroscopy. TEM imaging showed that the PdVCo particles size is about 7 nm. The trimetallic nanocatalysts were characterized in transfer hydrogenation of carbonyl substrates to alcohol product which was defined by GC (FID detector). The obtained result is that the conversion of the carbonyl substrates is over 73% in the case of PdVCo nano-catalyst in the presence of potassium hydroxide.