Palladium (Pd) nanoparticles dispersion is a rare and precious metal and this metal is included in the Platinum group elements. Palladium dispersion is highly utilized as an active catalyst material in automotive catalytic converters, however, it also the applications in the engineering, electronics, biomedical, have and jewelry sectors. As the catalytic performance of Pd NPs dispersion is susceptible to the shape and size for its performance as a catalyst.

Palladium nanoparticles dispersion provides the opportunity for being more effective catalyst materials because of their high surface area to volume ratio and high surface energy. The dispersion form of Palladium plays a key role in many technologies and is employed in many industrial applications, especially those concerned with the low-temperature reduction of automobile pollutants and the formation of C-C bonds in a number of important organic reactions such as Heck, Suzuki, and Stille coupling reactions.

Palladium nanoparticles dispersion is also an indispensable material component in applications involving hydrogen storage and gas sensing. These nanoparticles can be stabilized with ligands, surfactants, dendrimers, etc. Moreover, Pd NPs dispersion shows high catalytic activity for ethanol electrooxidation in basic media and has the potential to be utilized as a surface-enhanced Raman scattering (SERS) substrate. Thus, the development of new synthetic methods for the formation of Pd NPs with well-controlled size and shape is important for a large number of future applications.

Palladium nanoparticles (PdNPs) dispersion exhibit remarkable optical, electronic, and chemical properties. Now, Palladium nanoparticles (PdNPs) dispersion is being investigated for use as sensors and catalysts. Also, it is used in the biomedical field, although the green-synthesized PdNPs possess remarkable antioxidant and antimicrobial activities. Plant-derived PdNPs seem to have the potential for application in cancer therapy because these compounds are also toxic to cancer cells.

Nowadays, Palladium nanodispersion is more and more employed in electrical appliances. It is employed in widescreen televisions, computers, and mobile phones, in the form of tiny multi-layer ceramic capacitors, of which more than 400 billion are made each year. It is alloyed with silver, gold, and copper for use in dentistry. Palladium salts are applied in electroplating.