Abstract
Lignin supported palladium(0) nanoparticles (lignin@Pd-NPs) was synthesized in water by reduction of Pd(II) salt successfully. The influence of the various parameters on the particle size of Pd nanoparticles was studied. This lignin supported Pd-NPs were characterized by UV-Vis., PXRD, SEM, TEM and EDX. The lignin@Pd-NPs is heterogeneous catalyst has been used in the transfer hydrogenation of carbonyl compounds into alcohols. Short reaction times with good to excellent yields (85-95%) of the desired products represent the effectiveness of this catalyst for these reactions. The catalyst was easily separable by simple filtration and reusable several times in repeating cycles without considerable loss in its activity. The lignin@Pd-NPs unveiled a superior hydrogenation catalyst for carbonyl compounds.
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