Synthesis of Palladium nanoparticles by pulsed laser ablation inwater and their characterization

摘要

Nano-sized metal particles are often produced because of their peculiar physical and chemical properties, related to quantum size effects on the electron distributions with respect to bulk samples. Palladium nanoparticles have proven to be efficient catalysts toward many reactions, such as olefin hydrogenation.rnIn this work, palladium nanoparticles were produced by pulsed laser ablation in water. The effect of the wavelength (355 and 1064 nm), repetition rate (10 to 200 Hz), and energy of a Nd:YAG laser on the size distribution and produced quantity of nanoparticles were studied.