Synthesis and characterization of linoleic acid capped palladium nanoparticles

Abstract

Many chemical reduction methods have been used to synthesize palladium nanoparticles from palladium salts. Here palladium nanoparticles have been synthesized through the chemical reduction of palladium ions by ethanol using linoleic acid as a protecting agent, which is then dispersed in chloroform to form homogeneous colloidal solution. Transmission electron microscope (TEM) reveal that the particles are mostly spherical in shape with an average size of nearly 6 nm. Fourier Transform infrared spectroscopy confirms the capping of these nanoparticles by linoleic acid. The UV/Vis absorption spectra show absorption peak at 390 nm which is due to surface plasmon resonance (SPR).